Search Result

Results for "

free radical

" in MedChemExpress (MCE) Product Catalog:

By Targets:	Adrenergic Receptor (2) AMPK (1) Amylases (1) Amyloid-β (1) Androgen Receptor (2) Angiotensin-converting Enzyme (ACE) (1) Antibiotic (3) Apoptosis (19) Autophagy (10) Bacterial (8) Beta-secretase (2) Biochemical Assay Reagents (9) CD74 (1) Cholinesterase (ChE) (5) COX (7) DNA/RNA Synthesis (1) Drug Metabolite (1) EGFR (1) Elastase (1) Endogenous Metabolite (35) Ferroptosis (9) Fluorescent Dye (8) Fungal (12) Glucosidase (1) Glutathione Peroxidase (1) HIF/HIF Prolyl-Hydroxylase (2) HIV (1) HSV (2) IFNAR (1) iGluR (2) Influenza Virus (3) Interleukin Related (2) Isotope-Labeled Compounds (12) Keap1-Nrf2 (4) Liposome (1) Lipoxygenase (3) MAP3K (1) MDM-2/p53 (2) MMP (4) Monoamine Oxidase (1) NF-κB (1) Nucleoside Antimetabolite/Analog (1) Opioid Receptor (1) P-selectin (1) p38 MAPK (2) Parasite (2) Prostaglandin Receptor (2) Reactive Oxygen Species (35) SOD (1) Tau Protein (1) TNF Receptor (4) Toll-like Receptor (TLR) (1) Tyrosinase (8) Wnt (1) Xanthine Oxidase (3) β-catenin (1)
By Research Areas:	Cancer (46) Cardiovascular Disease (19) Endocrinology (4) Infection (22) Inflammation/Immunology (60) Metabolic Disease (36) Neurological Disease (26)
Click Chemistry:	Azide (1)
Oligonucleotides:	Antioxidants (1) Solvents (2) Preservatives (1) Chelating Agents (1)

212

Inhibitors & Agonists

Screening Libraries

Fluorescent Dye

Biochemical Assay Reagents

Peptides

Inhibitory Antibodies

Natural
Products

Isotope-Labeled Compounds

Click Chemistry

Oligonucleotides

Targets Recommended: Free Fatty Acid Receptor

Cat. No.	Product Name	Target	Research Areas	Chemical Structure

HY-106408

Nelonemdaz Salfaprodil free base; Neu2000	iGluR	Neurological Disease
Nelonemdaz (Salfaprodil free base) is an NR2B-selective and uncompetitive antagonist of N-methyl-D-aspartate (NMDA). Nelonemdaz is also a free radical scavenger. Nelonemdaz has excellent neuroprotection against NMDA- and free radical-induced cell death .

HY-106408A

Nelonemdaz potassium Salfaprodil; Neu2000 potassium	iGluR	Neurological Disease
Nelonemdaz (Salfaprodil) potassium is an NR2B-selective and uncompetitive antagonist of N-methyl-D-aspartate (NMDA). Nelonemdaz potassium is also a free radical scavenger. Nelonemdaz potassium has excellent neuroprotection against NMDA- and free radical-induced cell death .

HY-114713

POBN 4-POBN	Others	Others
POBN (4-POBN) is a cell permeable, hydrophilic spin trap that can be used to detect free radical adducts .

HY-155346

Free radical scavenger 1	Others	Others
Free radical scavenger 1 (compound 8) shows scavenging activity against the DPPH radical, with the IC₅₀ of 43.39 μg/ml .

HY-W250973

Galvinoxyl free radical	Others	Others
Galvinoxyl free radical is a stable organism with free radicals .

HY-W250971

16-DOXYL-stearic Acid Free Radical 2-(14-Carboxytetradecyl)-2-ethyl-4,4-dimethyl-3-oxazolidinyloxy free radical; 16-DSA	Endogenous Metabolite	Metabolic Disease
16-DOXYL-stearic Acid Free Radical (2-(14-Carboxytetradecyl)-2-ethyl-4,4-dimethyl-3-oxazolidinyloxy Free Radical; 16-DSA) is a form of stearic acid containing a 4,4-dimethyl-3-oxazolidinyloxy (DOXYL) group that forms a hydrophobic spin label. It is often used to study molecular aspects of membranes and hydrophobic proteins.

HY-117457

BPIC	DNA/RNA Synthesis	Cancer
BPIC is a DNA intercalator agent and also an anti-cancer agent. BPIC scavenge ∙OH, ∙O2(-), and NO free radicals .

HY-119955

Amflutizole LY-141894	Xanthine Oxidase	Others
Amflutizole (LY-141894) is an inhibitor of xanthine oxidase. Amflutizole abolishes free radical formation and release in cerebral ischemia/reperfusion mice .

HY-N0499A

Cyanidin	Others	Inflammation/Immunology
Cyanidin, an antioxidant, has protective effect on DNA cleavage, free radical scavenging activity and significant inhibition of XO activity .

HY-N3596

Cleomiscosin C Aquillochin	Others	Inflammation/Immunology
Cleomiscosin C (Aquillochin) can be isolated from Aquilaria agallocha. Cleomiscosin C has antioxidant activity. Cleomiscosin C inhibits LDL oxidation and free radicals generation .

HY-N7518

Eulophiol	Others	Inflammation/Immunology
Eulophiol shows the 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging activity with an EC₅₀ of 27.7μM. Antioxidant activity .

HY-N1859

3'-O-Methylorobol	Others	Metabolic Disease Inflammation/Immunology
3'-O-Methylorobol, an antioxidant flavonoid, exhibits moderate antioxidant activity in the 2,2-diphenyl-1-picrylhydrazyl free radical scavenging assay .

HY-114651

Phenazoviridin	Others	Cancer
Phenazoviridin is a free radical scavenger. Phenazoviridin shows strong inhibitory activity against lipid peroxidation in rat brain homogenate and exhibits antihypoxic activity in mice .

HY-N8042

Erigeside I	Others	Others
Erigeside I is a free radical scavenger isolated from Erigeron breviscapus .

HY-W015913

Sodium 2-oxopropanoate 5+ Cited Publications Sodium pyruvate	Reactive Oxygen Species Endogenous Metabolite	Metabolic Disease
Sodium 2-oxopropanoate (Sodium pyruvate), a three-carbon metabolite of Glucose, is a compound produced in the glycolytic pathway. Sodium 2-oxopropanoate is a free radical scavenger that can scavenge ROS .

HY-125568

Pyridoxatin	Others	Others
Pyridoxatin is a free radical scavenger of microbial origin. Pyridoxatin is isolated from a fungus culture identified as Acremonium sp. BX86. Pyridoxatin inhibits lipid peroxidation induced by free radicals in rat liver microsomes free from vitamin E .

HY-N8844

2''-O-Galloylquercitrin	Others	Others
2"-O-Galloylquercitrin (Compound 6) is isolated from the natural Acer ginnala. 2"-O-Galloylquercitrin has health benefits. 2"-O-Galloylquercitrin has the activity of free radical scavenger .

HY-164159

α-Glucosylrutin	Reactive Oxygen Species	Inflammation/Immunology
α-Glucosylrutin is a potent antioxidant with free radical scavenging activity. Due to its high epidermal bioavailability, α-Glucosylrutin can be used in the study of skin aging .

HY-N10176

D-Isofloridoside	Reactive Oxygen Species MMP	Cardiovascular Disease
D-Isofloridoside, one of the polysaccharide precursors, has the activity of scavenging free radicals, inhibiting ROS expression, and inhibiting MMP-2 and MMP-9 .

HY-W274194

Antioxidant agent-7	Others	Others
Antioxidant agent-7 (SD-7) is a benzodiazepine derivative with antioxidant activity with an IC₅₀ value of 470 nM to scavenge DPPH (2,2-diphenyl-1-picrylhydrazyl) free radical .

HY-N10294

Epicoccone B	HIV	Infection Inflammation/Immunology
Epicoccone B, firstly reported from C. globosum, exhibits the DPPH free radical scavenging ability with IC₅₀ value of 10.8 μM, and has potent α-glucosidase inhibition with IC₅₀ value of 27.3 μM. Anti-HIV activity .

HY-N3220

Myricetin 3-O-galactoside 1 Publications Verification	Xanthine Oxidase	Metabolic Disease
Myricetin 3-O-galactoside inhibits xanthine oxidase (XO) activity, lipid peroxidation and scavenges the free radical. Myricetin 3-O-galactoside inhibits lipid peroxidation with an IC₅₀ of 160 μg/mL. Antioxidant activity .

HY-W015913R

Sodium 2-oxopropanoate (standard) 4 Publications Verification	Reactive Oxygen Species Endogenous Metabolite	Metabolic Disease
Sodium 2-oxopropanoate (Standard) is the analytical standard of Sodium 2-oxopropanoate. This product is intended for research and analytical applications. Sodium 2-oxopropanoate (Sodium pyruvate), a three-carbon metabolite of Glucose, is a compound produced in the glycolytic pathway. Sodium 2-oxopropanoate is a free radical scavenger that can scavenge ROS .

HY-N3554

Catechin-7-O-β-D-xylopyranoside (+)-Catechol 7-β-D-xylopyranoside	Others	Others
Catechin-7-O-β-D-xylopyranoside is an antioxidant compound with strong DPPH free radical scavenging ability. Catechin-7-O-β-D-xylopyranoside can be extracted from birch inner bark and nepeta stem bark .

HY-W273690

Pentifylline 1-Hexyltheobromine; Hexyltheobromine	Others	Cardiovascular Disease
Pentifylline is a vasodilator. Pentifylline inhibits platelet aggregation and thromboxane A2 synthesis, decrease the release of free radicals. Pentifylline has the potential for the research of acute ischaemic stroke .

HY-N13142

Luteolin 7-O-[β-D-apiofuranosyl-(1→6)]-β-D-glucopyranoside	Others	Inflammation/Immunology
Luteolin 7-O-[β-D-apiofuranosyl-(1→6)]-β-D-glucopyranoside (compound 3) is a flavonoid with antioxidant activity, which can be isolated from Margaritopsis carrascoana. Luteolin 7-O-[β-D-apiofuranosyl-(1→6)]-β-D-glucopyranoside has good DPPH free radical scavenging activity (IC50=0.188 mg/mL) .

HY-129064

Superoxide dismutase, Porcine erythrocytes SOD	SOD	Inflammation/Immunology Cancer
Superoxide dismutase, Porcine erythrocytes (SOD) is the only antioxidant enzyme that scavenges the superoxide anion by converting this free radical to oxygen and hydrogen peroxide, thus preventing peroxynitrite production and further damage. Superoxide dismutase, Porcine erythrocytes is extensively researched and used in anti-inflammatory, antitumor, radiation protection, and antisenility applications .

HY-150585

BuChE-IN-5	Amyloid-β Cholinesterase (ChE) Tau Protein	Neurological Disease
BuChE-IN-5 (compound 25b) is a potent BuChE inhibitor with an IC₅₀ value of 1.94 μM. BuChE-IN-5 efficiently inhibits aggregation Aβ and tau protein in Escherichia coli. BuChE-IN-5 also has free radical scavenging capacity and antioxidant activity. BuChE-IN-5 can be used for researching Alzheimer’s disease .

HY-N0403

2,3,4',5-Tetrahydroxystilbene 2-O-β-D-glucoside	Apoptosis	Inflammation/Immunology
2,3,4',5-Tetrahydroxystilbene 2-O-β-D-glucoside (TSG) is an active product that can be extracted from Polygonum multiflorum Thunb. TSG has anti-inflammatory, antioxidative, anti-atherosclerotic, anti-apoptotic, and free radical scavenging activities, TSG is also indicated to facilitate long-term potentiation and learning and memory in both normal and pathological conditions .

HY-B1777

Spermine 3 Publications Verification NSC 268508; Neuridine	Endogenous Metabolite Influenza Virus	Infection Metabolic Disease Cancer
Spermine (NSC 268508) functions directly as a free radical scabenger to protect DNA from free radical attack. Spermine has antiviral effects.

HY-D0367

Fluorescent Brightener 28 Calcofluor White M2R	Fluorescent Dye	Others
Fluorescent brightener 28 is a fluorescent whitening agent commonly used in the padding process of the textile industry. Fluorescent brightener 28 is capable of staining polysaccharides such as cellulose, and when the plasma membrane ruptures, it also weakly stains the cytoplasm and strongly stains the cell nucleus. Additionally, Fluorescent brightener 28 can be utilized to detect intracellular chitin in living cells. Fluorescent Brightener 28 also is a visible light emitting diode (LED)-light sensitive photoinitiator for free radical photopolymerizations .

HY-W750459

Fluorescent brightener 28 (Technical Grade)	Fluorescent Dye	Others
Fluorescent brightener 28 (Technical Grade) is a fluorescent whitening agent commonly used in the padding process of the textile industry. Fluorescent brightener 28 is capable of staining polysaccharides such as cellulose, and when the plasma membrane ruptures, it also weakly stains the cytoplasm and strongly stains the cell nucleus. Additionally, Fluorescent brightener 28 can be utilized to detect intracellular chitin in living cells. Fluorescent Brightener 28 also is a visible light emitting diode (LED)-light sensitive photoinitiator for free radical photopolymerizations .

HY-N0026

2'-Acetylacteoside 2'-AA	Others	Others
2'-Acetylacteoside is a phenylethanoid glycoside isolated from Brandisia hancei, inhibits free radical-induced hemolysis of red blood cells and exhibits free radical scavenging activity .

HY-W067572

Stobadine (-)-Stobadine	Reactive Oxygen Species	Cardiovascular Disease
Stobadine is a potent antioxidant and prevents free radical induced alterations in ER membrane fluidity. Stobadine can be used for effective cardio- and neuroprotectants development based on antioxidant or free radical scavenging mechanisms of action .

HY-B1777R

Spermine (Standard)	Endogenous Metabolite Influenza Virus	Infection Metabolic Disease Cancer
Spermine (Standard) is the analytical standard of Spermine. This product is intended for research and analytical applications. Spermine (NSC 268508) functions directly as a free radical scabenger to protect DNA from free radical attack. Spermine has antiviral effects.

HY-W076778

Monoethyl itaconate	Others	Others
Monoethyl itaconate is a free radical can be used for polymerization .

HY-133183

Urolignoside	Others	Others
Urolignoside is an antioxidant with free radical scavenging activity. Urolignoside potently scavenges DPPH radical, and exhibits antioxidant to β-carotene-lineoleate model .

HY-124750

NecroX-7	TNF Receptor Interleukin Related Toll-like Receptor (TLR) Reactive Oxygen Species	Cardiovascular Disease Inflammation/Immunology
NecroX-7 is a potent free radical scavenger and a HMGB1 (high-mobility group box 1) inhibitor. NecroX-7 can be used as an antidote to acetaminophen toxicity. NecroX-7 exerts a protective effect by preventing the release of HMGB1 in ischemia/reperfusion injury. NecroX-7 inhibits the HMGB1-induced release of TNF and IL-6, as well as the expression of TLR-4 and receptor for advanced glycation end products. NecroX-7 can be used graft-versus-host disease (GVHD) research .

HY-N0091

Hypoxanthine 5 Publications Verification Purin-6-ol; Sarcine	Endogenous Metabolite	Others
Hypoxanthine, a purine derivative, is a potential free radical generator and could be used as an indicator of hypoxia.

HY-N0026R

2'-Acetylacteoside (Standard)	Others	Others
2'-Acetylacteoside (Standard) is the analytical standard of 2'-Acetylacteoside. This product is intended for research and analytical applications. 2'-Acetylacteoside is a phenylethanoid glycoside isolated from Brandisia hancei, inhibits free radical-induced hemolysis of red blood cells and exhibits free radical scavenging activity .

HY-D0187B

L-Glutathione reduced monosodium GSH monosodium; γ-L-Glutamyl-L-cysteinyl-glycine monosodium	Endogenous Metabolite Reactive Oxygen Species Ferroptosis	Cardiovascular Disease Neurological Disease Inflammation/Immunology Cancer
L-Glutathione reduced monosodium is an endogenous antioxidant and is capable of scavenging oxygen-derived free radicals.

HY-N9370

Isobellidifolin	Fungal	Infection
Isobellidifolin, a xanthone, is a free radical scavenger and antioxidant compound. Isobellidifolin has potent antifungal effect .

HY-113248

3-Nitro-L-tyrosine	Endogenous Metabolite	Metabolic Disease
3-Nitro-L-tyrosine is a biomarker of nitrogen free radical species modified proteins in systemic autoimmunogenic conditions.

HY-N1449

Neonuezhenide	Others	Others
Neonuezhenide exhibits strong antioxidant effect against hemolysis of red blood cells induced by free radicals .

HY-136511

Epicaptopril SQ 14534	Angiotensin-converting Enzyme (ACE)	Cardiovascular Disease
Epicaptopril (SQ 14534) is the derivative of Captopril (HY-B0368). Epicaptopril is an inhibitor for angiotensin-converting enzyme (ACE). Epicaptopril enhances vasodilation in an endothelium-derived relaxing factor (EDRF)-dependent manner. Epicaptopril is a free radical scavenger, and can be used in research about oxidative stress and free radical damage caused cardiovascular disorders .

HY-13244

Disufenton sodium NXY-059	Reactive Oxygen Species	Neurological Disease
Disufenton sodium (NXY-059) is a derivative of the neuroprotective agent phenylbutynitrone and has extremely strong free radical scavenging ability.

HY-137683B

Guanosine 5'-O-2-thiodiphosphate (trilithium) GDPβS trilithium	Others	Others
Guanosine 5'-O-(2-thiodiphosphate) (trilithium) is a guanosine nucleotide that is a stable free radical .

HY-137929

Deoxygerfelin	Others	Metabolic Disease
Deoxygerfelin is a phenolic antioxidant that has been found in A. versicolor. It scavenges free radicals in a Trolox equivalent activity concentration (TEAC) assay.

HY-B1001

Todralazine Ecarazine	Adrenergic Receptor	Cardiovascular Disease Endocrinology
Todralazine (Ecarazine) is an anti-hypertensive agent, acts as a β₂AR blocker, with antioxidant and free radical scavenging activity .

HY-D0187

L-Glutathione reduced 25+ Cited Publications GSH; γ-L-Glutamyl-L-cysteinyl-glycine	Endogenous Metabolite Reactive Oxygen Species Ferroptosis	Cardiovascular Disease Neurological Disease Inflammation/Immunology Cancer
L-Glutathione reduced (GSH; γ-L-Glutamyl-L-cysteinyl-glycine) is an endogenous antioxidant and is capable of scavenging oxygen-derived free radicals.

Cat. No.	Product Name

HY-L037

Antioxidant Compound Library

1,632 compounds

Oxidative stress is an imbalance of free radicals and antioxidants in the body, which can lead to cell and tissue damage. Oxidative stress can be responsible for the induction of several diseases, both chronic and degenerative, as well as speeding up body aging process and cause acute pathologies. Antioxidants are a class of compounds able to counteract oxidative stress and mitigate its effects on individuals’ health, gained enormous attention from the biomedical research community. Antioxidants have long been substantial and amenable therapeutic arsenals for multifarious diseases such as AD and cancer.

MCE Antioxidant Compound Library contains 1,632 compounds that act as antioxidants for high throughput screening (HTS) and high content screening (HCS). This library is a useful tool for discovery new antioxidants and oxidative stress research.

HY-L144

Mitochondrial Protection Compound Library

639 compounds

Normal mitochondrial function is critical for maintaining cellular homeostasis because mitochondria produce ATP and are the major intracellular source of free radicals. Cellular dysfunctions induced by intracellular or extracellular insults converge on mitochondria and induce a sudden increase in permeability on the inner mitochondrial membrane, the so-called mitochondrial membrane permeability transition (MMPT). MMPT is caused by the opening of pores in the inner mitochondrial membrane, matrix swelling, and outer membrane rupture. The MMPT is an endpoint to initiate cell death because the pore opening together with the release of mitochondrial cytochrome c activates the apoptotic pathway of caspases.

The normal operation of mitochondrial function is important for maintaining normal cell death and treatment of mitochondrial diseases. MCE offers a unique collection of 639 compounds with identified and potential mitochondrial protective activity. MCE Mitochondrial Protection Compound Library is critical for drug discovery and development.

HY-L178

Radioprotector Library

1,954 compounds

Radiation sickness is a general term for various types and degrees of damage (or disease) occurring in the human body after exposure to ionizing radiation. Although small amounts of ionizing radiation can also cause the body to produce free radicals and ROS, causing oxidative stress, resulting in DNA damage and chromosomal aberration. Radioprotector are compounds with radiation protection that can be used to prevent/protect non-tumor cells from the harmful effects of radiation. Radioprotective compounds can prevent the damage of radioactive substances to the human body and reduce the clinical symptoms of various radioactive diseases. In addition, radioprotectors can protect normal cells from damage during radiation therapy. The ideal anti-radiation drug should not affect the sensitivity of tumor cells to radiation therapy while protecting normal cells.

MCE designs a unique collection of 1,954 radioprotectors. Radioprotector Library is an effective tool for acute Radiation Syndrome, drug combination research with radiation drugs.

Cat. No.	Product Name	Type

HY-D0367

Fluorescent Brightener 28

Calcofluor White M2R

Fluorescent Dyes/Probes

Fluorescent brightener 28 is a fluorescent whitening agent commonly used in the padding process of the textile industry. Fluorescent brightener 28 is capable of staining polysaccharides such as cellulose, and when the plasma membrane ruptures, it also weakly stains the cytoplasm and strongly stains the cell nucleus. Additionally, Fluorescent brightener 28 can be utilized to detect intracellular chitin in living cells. Fluorescent Brightener 28 also is a visible light emitting diode (LED)-light sensitive photoinitiator for free radical photopolymerizations .

HY-D1459

BODIPY 665/676	Fluorescent Dyes/Probes
BODIPY 665/676 is a lipophilic radical-sensitive fluorescent probe that can be used to study radical-driven lipid autoxidation .

HY-119987

Sudan orange G SOG	Dyes
Sudan orange G is an azo dye. Sudan orange G, after enzymatic oxidation, generates oligomers and even polymers through free radical coupling reactions .

HY-119987R

Sudan orange G (Standard)	Dyes
Sudan orange G (Standard) is the analytical standard of Sudan orange G. This product is intended for research and analytical applications. Sudan orange G is an azo dye. Sudan orange G, after enzymatic oxidation, generates oligomers and even polymers through free radical coupling reactions .

HY-W127725

Thymolphthalexon tetrasodium

Dyes

Thymolphthalexon (tetrasodium) is an organic compound commonly used as a reagent in biochemical assays. It belongs to the family of thioxanthone derivatives and has strong antioxidant properties. Thymolphthalexon has several applications in the study of free radical response, oxidative stress, and aging. In addition, it can be used as a photosensitizer in photodynamic therapy for the improvement of cancer and other diseases.

Cat. No.	Product Name	Type

HY-W015913

Sodium 2-oxopropanoate 5+ Cited Publications Sodium pyruvate	Cell Assay Reagents
Sodium 2-oxopropanoate (Sodium pyruvate), a three-carbon metabolite of Glucose, is a compound produced in the glycolytic pathway. Sodium 2-oxopropanoate is a free radical scavenger that can scavenge ROS .

HY-W015913R

Sodium 2-oxopropanoate (standard) 4 Publications Verification	Biochemical Assay Reagents
Sodium 2-oxopropanoate (Standard) is the analytical standard of Sodium 2-oxopropanoate. This product is intended for research and analytical applications. Sodium 2-oxopropanoate (Sodium pyruvate), a three-carbon metabolite of Glucose, is a compound produced in the glycolytic pathway. Sodium 2-oxopropanoate is a free radical scavenger that can scavenge ROS .

HY-D0187

L-Glutathione reduced Maximum Cited Publications 28 Publications Verification GSH; γ-L-Glutamyl-L-cysteinyl-glycine	Cell Assay Reagents Cosmetic Peptides
L-Glutathione reduced (GSH; γ-L-Glutamyl-L-cysteinyl-glycine) is an endogenous antioxidant and is capable of scavenging oxygen-derived free radicals.

HY-44076

LAP

Lithium phenyl-2,4,6-trimethylbenzoylphosphinate

3D Bioprinting

LAP (Lithium phenyl-2,4,6-trimethylbenzoylphosphinate) is a free radical initiator. The free radicals produced by LAP under bioprinting conditions are potentially cytotoxic and mutagenic. In addition, the concentration of LAP affects the mechanical strength of 3D printed scaffolds. Generally, the concentration range of LAP used for curing is 0.05%-1%. The elastic modulus produced at a concentration of 0.1% is the highest, with enhanced mechanical properties and excellent biocompatibility .

HY-130502

5β,6β-epoxycholestanol

Cholesterol 5beta,6beta-epoxide

Drug Delivery

5β,6β-epoxycholestanol is an oxidative metabolite of cholesterol formed by free-radical and non-radical oxidation of cholesterol at the 5,6 double bond. Induces lactate dehydrogenase (LDH) release and apoptosis in macrophage-differentiated U937 cells. Cholesterol 5beta,6beta-epoxide has been found in human fatty streaks and advanced atherosclerotic lesions, but not in normal aortic tissue .

HY-W013508

I2959	3D Bioprinting
I2959 is widely used as a photoinitiator for photochemical cross-linking of hydrogels, and the combination of I2959 and CMA hydrogel has been used as a bio-ink for biological 3D printing applications. In addition, I2959 has a high free radical generation efficiency and is cytotoxic to rapidly dividing cell lines .

HY-W790758

CPH hydrochloride	Cell Assay Reagents
CPH hydrochloride is a potent, cell-permeable free radical scavenger suitable for the detection of superoxide radicals and peroxynitrite in vitro.

HY-W776847

3-(2-Iodoacetamido)-proxyl	Biochemical Assay Reagents
3-(2-Iodoacetamido)-proxyl serves as a free radical spin probe employed in spin labeling techniques, which facilitate the exploration of the dynamic interactions among molecules, proteins, lipids, and cell membranes.

HY-D0187R

L-Glutathione reduced (Standard)	Cell Assay Reagents Cosmetic Peptides
L-Glutathione reduced (Standard) is the analytical standard of L-Glutathione reduced. This product is intended for research and analytical applications. L-Glutathione reduced (GSH; γ-L-Glutamyl-L-cysteinyl-glycine) is an endogenous antioxidant and is capable of scavenging oxygen-derived free radicals.

HY-Y1313

3-Nitrobenzoic acid m-Carboxynitrobenzene; m-Nitrobenzenecarboxylic acid; m-Nitrobenzoic acid	Biochemical Assay Reagents
3-Nitrobenzoic acid (m-Carboxynitrobenzene; m-Nitrobenzenecarboxylic acid; m-Nitrobenzoic acid) is a strong antioxidant and antimicrobial agent that can inhibit the generation of free radicals and kill bacteria and fungi. 3-Nitrobenzoic acid is a kind of biological materials or organic compounds that are widely used in life science research .

HY-W130177

Iodocholine iodide	Biochemical Assay Reagents
Iodocholine iodide is a non-toxic, metabolizable "green" catalyst that can catalyze the free radical polymerization of functional polymers. Iodocholine iodide is also the non-radioactive iodide of Carbon-11 choline. C-11 Choline can be used in PET imaging and non-informative bone scintigraphy, CT or MRI to monitor various types of cancer .

HY-W002004

4-Amino-tempo

4-Amino-2,2,6,6-tetramethylpiperidine-1-oxyl

Biochemical Assay Reagents

4-Amino-TEMPO can be used as a spin label for detecting radicals and the damage caused by them. 4-Amino-TEMPO possesses superoxide dismutase-mimetic activity, enabling it to easily penetrate cells and protect them from oxidative damage induced by H₂O₂. Additionally, 4-Amino-TEMPO exhibits significant radiation protective properties, effectively safeguarding DNA from oxidative stress-induced damage caused by UV exposure due to its ability to maintain a positive charge. Furthermore, 4-Amino-TEMPO is a highly selective oxidation catalyst widely used in the research and development of various specialty chemicals, including fragrances, pesticides, and others .

HY-15932

TOOS

TOOS sodium salt

Biochemical Assay Reagents

TOOS (TOOS sodium salt) is a highly water-soluble aniline derivative widely used in diagnostics and biological experiments. TOOS can be combined with 3-methyl-2-benzothiazolinone hydrazone hydrochloride (MBTH) to form a chromogenic system to measure oxidase activity. In the MBTH-TOOS chromogenic system, MBTH is catalytically oxidized to produce (-NH) free radicals, which react with TOOS to form colorless compounds. Furthermore, the colorless compound undergoes a disproportionation reaction to produce a blue-violet quinoid compound .

HY-W099538

Dilauryl thiodipropionate

Dilauryl 3,3'-Thiodipropionate

Biochemical Assay Reagents

Dilauryl thiodipropionate (DLTDP), which is a sulfur-containing antioxidant commonly used to stabilize polymers and plastics against degradation caused by heat, oxygen, and UV light, acts to scavenge free radicals and others that may cause polymer chain scission and cross-linked active substances, in addition, DLTDP has been used as an additive to lubricants, oils and other industrial fluids to improve their oxidation stability, the long hydrocarbon chain in DLTDP makes it low volatility and compatible with many materials and Good compatibility with substrates.

HY-W099538R

Dilauryl thiodipropionate (Standard)

Biochemical Assay Reagents

Dilauryl thiodipropionate (Standard) is the analytical standard of Dilauryl thiodipropionate. This product is intended for research and analytical applications. Dilauryl thiodipropionate (DLTDP), which is a sulfur-containing antioxidant commonly used to stabilize polymers and plastics against degradation caused by heat, oxygen, and UV light, acts to scavenge free radicals and others that may cause polymer chain scission and cross-linked active substances, in addition, DLTDP has been used as an additive to lubricants, oils and other industrial fluids to improve their oxidation stability, the long hydrocarbon chain in DLTDP makes it low volatility and compatible with many materials and Good compatibility with substrates.

HY-W011426

Isopropyl palmitate

Propan-2-yl hexadecanoate

Drug Delivery

Isopropyl palmitate is an fatty acid ester. Isopropyl palmitate can be used for design and characterization of bioactive bilayer films. The bilayer membrane not only has the ability to scavenge free radicals and inhibit lipid peroxidation, but also can inhibit the growth of known foodborne pathogens. Isopropyl palmitate can be used as an excipient, such as lubricant, oily carrier, solvent, controlled-release transdermal film. Pharmaceutical excipients, or pharmaceutical auxiliaries, refer to other chemical substances used in the pharmaceutical process other than pharmaceutical ingredients. Pharmaceutical excipients generally refer to inactive ingredients in pharmaceutical preparations, which can improve the stability, solubility and processability of pharmaceutical preparations. Pharmaceutical excipients also affect the absorption, distribution, metabolism, and elimination (ADME) processes of co-administered drugs .

Cat. No.	Product Name	Target	Research Area

HY-D0187

L-Glutathione reduced 25+ Cited Publications GSH; γ-L-Glutamyl-L-cysteinyl-glycine	Endogenous Metabolite Reactive Oxygen Species Ferroptosis	Cardiovascular Disease Neurological Disease Inflammation/Immunology Cancer
L-Glutathione reduced (GSH; γ-L-Glutamyl-L-cysteinyl-glycine) is an endogenous antioxidant and is capable of scavenging oxygen-derived free radicals.

HY-P1934A

Cyclo(L-Phe-L-Pro)	Fungal IFNAR Reactive Oxygen Species	Infection Inflammation/Immunology Cancer
Cyclo(L-Phe-L-Pro), isolated from Pseudomonas fluorescens and Pseudomonas alcaligenes cell-free culture supernatants is an antifungal cyclic dipeptide . Cyclo(L-Phe-L-Pro) inhibits IFN-β production by interfering with retinoic-acid-inducible gene-I (RIG-I) activation . Cyclo(L-Phe-L-Pro) exhibits free-radical scavenging activity with the IC₅₀ of 24 µM in the DPPH assay .

HY-D0187R

L-Glutathione reduced (Standard)	Endogenous Metabolite Reactive Oxygen Species Ferroptosis	Cardiovascular Disease Neurological Disease Inflammation/Immunology Cancer
L-Glutathione reduced (Standard) is the analytical standard of L-Glutathione reduced. This product is intended for research and analytical applications. L-Glutathione reduced (GSH; γ-L-Glutamyl-L-cysteinyl-glycine) is an endogenous antioxidant and is capable of scavenging oxygen-derived free radicals.

HY-P4531

H-Ser-Tyr-OH	Opioid Receptor	Neurological Disease
H-Ser-Tyr-OH is a dipeptide consisting of glutamic acid, glycine and histidine. H-Ser-Tyr-OH can form a copper(II) complex with copper ions to form a strong free radical scavenging activity. H-Ser-Tyr-OH also increases the intracellular uptake of the delta opioid receptor ligand deltorphin .

HY-W013494R

L-Carnosine (Standard)	Endogenous Metabolite	Metabolic Disease Cancer
L-Carnosine (Standard) is the analytical standard of L-Carnosine. This product is intended for research and analytical applications. L-Carnosine is a dipeptide of the amino acids beta-alanine and histidine and has the potential to suppress many of the biochemical changes that accompany aging. In Vitro: L-Carnosine is a dipeptide of the amino acids beta-alanine and histidine and has the potential to suppress many of the biochemical changes that accompany aging . L-Carnosine also exhibits some antioxidant effects. The antioxidant mechanism of L-Carnosine is attributed to its chelating effect against metal ions, superoxide dismutase (SOD)-like activity, and ROS and free radicals scavenging ability .

Cat. No.	Product Name	Target	Research Area

HY-P99731

Milatuzumab 2 Publications Verification hLL1; MEDI-115	CD74	Cancer
Milatuzumab (hLL1; MEDI-115) is a humanized anti-CD74 monoclonal antibody. CD74, a integral membrane protein, is associated with the promotion of B-cell growth and survival. Milatuzumab causes free radical oxygen generation, and loss of mitochondrial membrane potential. Milatuzumaba also decreases CD20/CD74 aggregates and cell adhesion, to lead to cell death .

Cat. No.	Product Name	Category	Target	Chemical Structure

HY-W015913

Sodium 2-oxopropanoate 5+ Cited Publications Sodium pyruvate	Structural Classification Classification of Application Fields Ketones, Aldehydes, Acids Source classification Metabolic Disease Endogenous metabolite Disease Research Fields	Reactive Oxygen Species Endogenous Metabolite
Sodium 2-oxopropanoate (Sodium pyruvate), a three-carbon metabolite of Glucose, is a compound produced in the glycolytic pathway. Sodium 2-oxopropanoate is a free radical scavenger that can scavenge ROS .

HY-N0499A

Cyanidin	Structural Classification Caprifoliaceae Source classification Phenols Polyphenols Sambucus williamsii Hance Plants	Others
Cyanidin, an antioxidant, has protective effect on DNA cleavage, free radical scavenging activity and significant inhibition of XO activity .

HY-N3596

Cleomiscosin C Aquillochin	Structural Classification Thymelaeaceae Source classification Phenols Polyphenols Plants Aquilaria sinensis (Lour.) Spreng.	Others
Cleomiscosin C (Aquillochin) can be isolated from Aquilaria agallocha. Cleomiscosin C has antioxidant activity. Cleomiscosin C inhibits LDL oxidation and free radicals generation .

HY-N7518

Eulophiol	Classification of Application Fields Pholidota yunnanensis Rolfe Orchidaceae Source classification Phenols Polyphenols Plants Disease Research Fields Inflammation/Immunology	Others
Eulophiol shows the 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging activity with an EC₅₀ of 27.7μM. Antioxidant activity .

HY-N1859

3'-O-Methylorobol	Structural Classification Flavonoids Alhagi maurorum var. sparsifolium (Shap.) Yakovlev/Alhagi sparsifolia Shap. Classification of Application Fields Leguminosae Source classification Phenols Polyphenols Plants Inflammation/Immunology Disease Research Fields Isoflavones	Others
3'-O-Methylorobol, an antioxidant flavonoid, exhibits moderate antioxidant activity in the 2,2-diphenyl-1-picrylhydrazyl free radical scavenging assay .

HY-114651

Phenazoviridin	Structural Classification Microorganisms Source classification Saccharides Monosaccharides	Others
Phenazoviridin is a free radical scavenger. Phenazoviridin shows strong inhibitory activity against lipid peroxidation in rat brain homogenate and exhibits antihypoxic activity in mice .

HY-N8042

Erigeside I	Structural Classification Source classification Phenols Polyphenols Plants Compositae Erigeron breviscapus (Vant.) Hand.-Mazz. Saccharides Monosaccharides	Others
Erigeside I is a free radical scavenger isolated from Erigeron breviscapus .

HY-125568

Pyridoxatin	Alkaloids Structural Classification Microorganisms Classification of Application Fields Source classification Other Diseases Pyridine Alkaloids Disease Research Fields	Others
Pyridoxatin is a free radical scavenger of microbial origin. Pyridoxatin is isolated from a fungus culture identified as Acremonium sp. BX86. Pyridoxatin inhibits lipid peroxidation induced by free radicals in rat liver microsomes free from vitamin E .

HY-N8844

2''-O-Galloylquercitrin	Source classification Sapindaceae Acer tataricum subsp. ginnala (Maximowicz) Wesmael Plants	Others
2"-O-Galloylquercitrin (Compound 6) is isolated from the natural Acer ginnala. 2"-O-Galloylquercitrin has health benefits. 2"-O-Galloylquercitrin has the activity of free radical scavenger .

HY-N10176

D-Isofloridoside	Cardiovascular Disease other families Classification of Application Fields Source classification Plants Disease Research Fields Saccharides	Reactive Oxygen Species MMP
D-Isofloridoside, one of the polysaccharide precursors, has the activity of scavenging free radicals, inhibiting ROS expression, and inhibiting MMP-2 and MMP-9 .

HY-N10294

Epicoccone B	Microorganisms Classification of Application Fields Ketones, Aldehydes, Acids Source classification Phenols Polyphenols Disease Research Fields Inflammation/Immunology	HIV
Epicoccone B, firstly reported from C. globosum, exhibits the DPPH free radical scavenging ability with IC₅₀ value of 10.8 μM, and has potent α-glucosidase inhibition with IC₅₀ value of 27.3 μM. Anti-HIV activity .

HY-N3220

Myricetin 3-O-galactoside 1 Publications Verification	Flavonols Structural Classification Flavonoids Rhododendron dauricum Linn. Classification of Application Fields Source classification Phenols Polyphenols Metabolic Disease Ericaceae Plants Disease Research Fields	Xanthine Oxidase
Myricetin 3-O-galactoside inhibits xanthine oxidase (XO) activity, lipid peroxidation and scavenges the free radical. Myricetin 3-O-galactoside inhibits lipid peroxidation with an IC₅₀ of 160 μg/mL. Antioxidant activity .

HY-W015913R

Sodium 2-oxopropanoate (standard) 4 Publications Verification	Structural Classification Ketones, Aldehydes, Acids Source classification Endogenous metabolite	Reactive Oxygen Species Endogenous Metabolite
Sodium 2-oxopropanoate (Standard) is the analytical standard of Sodium 2-oxopropanoate. This product is intended for research and analytical applications. Sodium 2-oxopropanoate (Sodium pyruvate), a three-carbon metabolite of Glucose, is a compound produced in the glycolytic pathway. Sodium 2-oxopropanoate is a free radical scavenger that can scavenge ROS .

HY-N3554

Catechin-7-O-β-D-xylopyranoside (+)-Catechol 7-β-D-xylopyranoside	Structural Classification Betula pendula Roth. Source classification Plants Saccharides Betulaceae Monosaccharides	Others
Catechin-7-O-β-D-xylopyranoside is an antioxidant compound with strong DPPH free radical scavenging ability. Catechin-7-O-β-D-xylopyranoside can be extracted from birch inner bark and nepeta stem bark .

HY-N13142

Luteolin 7-O-[β-D-apiofuranosyl-(1→6)]-β-D-glucopyranoside	Structural Classification Flavonoids Margaritopsis carrascoana Flavones Source classification Rubiaceae Plants	Others
Luteolin 7-O-[β-D-apiofuranosyl-(1→6)]-β-D-glucopyranoside (compound 3) is a flavonoid with antioxidant activity, which can be isolated from Margaritopsis carrascoana. Luteolin 7-O-[β-D-apiofuranosyl-(1→6)]-β-D-glucopyranoside has good DPPH free radical scavenging activity (IC50=0.188 mg/mL) .

HY-N0403

2,3,4',5-Tetrahydroxystilbene 2-O-β-D-glucoside	Structural Classification Polygonaceae Reynoutria japonica Houtt. Source classification Phenols Polyphenols Plants	Apoptosis
2,3,4',5-Tetrahydroxystilbene 2-O-β-D-glucoside (TSG) is an active product that can be extracted from Polygonum multiflorum Thunb. TSG has anti-inflammatory, antioxidative, anti-atherosclerotic, anti-apoptotic, and free radical scavenging activities, TSG is also indicated to facilitate long-term potentiation and learning and memory in both normal and pathological conditions .

HY-B1777

Spermine 3 Publications Verification NSC 268508; Neuridine	Structural Classification Natural Products Human Gut Microbiota Metabolites Microorganisms Classification of Application Fields Source classification Metabolic Disease Endogenous metabolite Disease Research Fields	Endogenous Metabolite Influenza Virus
Spermine (NSC 268508) functions directly as a free radical scabenger to protect DNA from free radical attack. Spermine has antiviral effects.

HY-N0026

2'-Acetylacteoside 2'-AA	Structural Classification Classification of Application Fields Simple Phenylpropanols Source classification Other Diseases Scrophulariaceae Phenylpropanoids Plants Disease Research Fields Brandisia hancei Hook. f.	Others
2'-Acetylacteoside is a phenylethanoid glycoside isolated from Brandisia hancei, inhibits free radical-induced hemolysis of red blood cells and exhibits free radical scavenging activity .

HY-B1777R

Spermine (Standard)	Structural Classification Natural Products Human Gut Microbiota Metabolites Microorganisms Source classification Endogenous metabolite	Endogenous Metabolite Influenza Virus
Spermine (Standard) is the analytical standard of Spermine. This product is intended for research and analytical applications. Spermine (NSC 268508) functions directly as a free radical scabenger to protect DNA from free radical attack. Spermine has antiviral effects.

HY-133183

Urolignoside	Structural Classification Natural Products Source classification Cinnamomum verum J. Presl Plants Lauraceae	Others
Urolignoside is an antioxidant with free radical scavenging activity. Urolignoside potently scavenges DPPH radical, and exhibits antioxidant to β-carotene-lineoleate model .

HY-N0091

Hypoxanthine 5 Publications Verification Purin-6-ol; Sarcine	Structural Classification Natural Products Microorganisms Classification of Application Fields Source classification Disease markers Other Diseases Endogenous metabolite Disease Research Fields Cancer	Endogenous Metabolite
Hypoxanthine, a purine derivative, is a potential free radical generator and could be used as an indicator of hypoxia.

HY-N0026R

2'-Acetylacteoside (Standard)	Structural Classification Simple Phenylpropanols Source classification Scrophulariaceae Phenylpropanoids Plants Brandisia hancei Hook. f.	Others
2'-Acetylacteoside (Standard) is the analytical standard of 2'-Acetylacteoside. This product is intended for research and analytical applications. 2'-Acetylacteoside is a phenylethanoid glycoside isolated from Brandisia hancei, inhibits free radical-induced hemolysis of red blood cells and exhibits free radical scavenging activity .

HY-N9370

Isobellidifolin	Infection other families Xanthones Classification of Application Fields Source classification Phenols Polyphenols Plants Disease Research Fields	Fungal
Isobellidifolin, a xanthone, is a free radical scavenger and antioxidant compound. Isobellidifolin has potent antifungal effect .

HY-113248

3-Nitro-L-tyrosine	Structural Classification Monophenols Classification of Application Fields Ketones, Aldehydes, Acids Source classification Disease markers Phenols Metabolic Disease Nervous System Disorder Endogenous metabolite Disease Research Fields Cardiovascular System Disorder	Endogenous Metabolite
3-Nitro-L-tyrosine is a biomarker of nitrogen free radical species modified proteins in systemic autoimmunogenic conditions.

HY-N1449

Neonuezhenide	Structural Classification Oleaceae Classification of Application Fields Ligustrum lucidum Ait. Source classification Other Diseases Phenols Polyphenols Plants Disease Research Fields	Others
Neonuezhenide exhibits strong antioxidant effect against hemolysis of red blood cells induced by free radicals .

HY-D0187

L-Glutathione reduced 25+ Cited Publications GSH; γ-L-Glutamyl-L-cysteinyl-glycine	Cardiovascular Disease Structural Classification Human Gut Microbiota Metabolites Microorganisms Neurological Disease Classification of Application Fields Ketones, Aldehydes, Acids Source classification Endogenous metabolite Inflammation/Immunology Disease Research Fields	Endogenous Metabolite Reactive Oxygen Species Ferroptosis
L-Glutathione reduced (GSH; γ-L-Glutamyl-L-cysteinyl-glycine) is an endogenous antioxidant and is capable of scavenging oxygen-derived free radicals.

HY-N1430

Oxyresveratrol trans-Oxyresveratrol	Structural Classification other families Stilbenes Classification of Application Fields Anti-aging Source classification Other Diseases Phenols Polyphenols Plants Disease Research Fields	Tyrosinase HSV Autophagy
Oxyresveratrol (trans-Oxyresveratrol) is a potent naturally occurring antioxidant and free radical scavenger (IC₅₀ of 28.9 μM against DPPH free radicals). Oxyresveratrol is potent and noncompetitive tyrosinase inhibitor with an IC₅₀ value of 1.2 μM for mushroom tyrosinase. Oxyresveratrol is effective against HSV-1, HSV-2 and varicella-zoster virus, and has neuroprotective effects .

HY-N1579

Pyrogallol 3 Publications Verification	Infection Structural Classification Microorganisms Classification of Application Fields Source classification Phenols Endogenous metabolite Disease Research Fields	Endogenous Metabolite Fungal Apoptosis
Pyrogallol is a polyphenol compound, which has anti-fungal and anti-psoriatic properties. Pyrogallol is a reductant that is able to generate free radicals, in particular superoxide anions.

HY-N4246

Bacopaside I	Triterpenes Structural Classification Terpenoids Source classification Scrophulariaceae Plants Bacopa monnieri (Linn.) Wettst.	Others
Bacopaside I, a saponin isolated from Bacopa monnieri, exbibits antioxidant properties and free radical scavenging capacity and exerts antidepressant-like effect .

HY-N2628

Erigeroside	other families Classification of Application Fields Ketones, Aldehydes, Acids Source classification Metabolic Disease Plants Disease Research Fields	Others
Erigeroside is as a derivatives of -glucose extracted from Satureja khuzistanica Jamzad. Erigeroside has good ability of anti-oxidation and scavenging oxidation free radical .

HY-N7692

Polyporusterone A	Classification of Application Fields Source classification Polyporaceae Other Diseases Poria cocos Plants Disease Research Fields Steroids	Others
Polyporusterone A is a triterpene carboxylic acid isolated from Polyporus umbellatus Fries. Polyporusterone A has inhibitory effect on free radical-induced lysis of red blood cells (hemolysis) .

HY-N8169

10-O-Trans-p-methoxycinnamoylcatalpol	Premna IntegrifoliaL. Classification of Application Fields Verbenaceae Source classification Other Diseases Other Phenylpropanoids Phenylpropanoids Plants Disease Research Fields	Others
10-O-Trans-p-methoxycinnamoylcatalpol has antioxidant activity with the IC₅₀ value of 0.37 μM/mL in DPPH free radical scavenging assay .

HY-N10594

Cirsiliol 4′-glucoside	Acanthaceae Ruellia tuberosa Linnaeus Plants	Drug Metabolite
Cirsiliol 4′-glucoside is a free radical scavenger, found from Ruellia tuberosa L. Cirsiliol 4′-glucoside shows potential anti-diabetic activity .

HY-N0091R

Hypoxanthine (Standard)	Structural Classification Natural Products Microorganisms Source classification Disease markers Endogenous metabolite Cancer	Endogenous Metabolite
Hypoxanthine (Standard) is the analytical standard of Hypoxanthine. This product is intended for research and analytical applications. Hypoxanthine, a purine derivative, is a potential free radical generator and could be used as an indicator of hypoxia.

HY-44076

LAP Lithium phenyl-2,4,6-trimethylbenzoylphosphinate	Classification of Application Fields Disease Research Fields Cancer	Biochemical Assay Reagents
LAP (Lithium phenyl-2,4,6-trimethylbenzoylphosphinate) is a free radical initiator. The free radicals produced by LAP under bioprinting conditions are potentially cytotoxic and mutagenic. In addition, the concentration of LAP affects the mechanical strength of 3D printed scaffolds. Generally, the concentration range of LAP used for curing is 0.05%-1%. The elastic modulus produced at a concentration of 0.1% is the highest, with enhanced mechanical properties and excellent biocompatibility .

HY-N1430R

Oxyresveratrol (Standard)	Structural Classification other families Stilbenes Source classification Phenols Polyphenols Plants	Tyrosinase HSV Autophagy
Oxyresveratrol (Standard) is the analytical standard of Oxyresveratrol. This product is intended for research and analytical applications. Oxyresveratrol (trans-Oxyresveratrol) is a potent naturally occurring antioxidant and free radical scavenger (IC50 of 28.9 μM against DPPH free radicals). Oxyresveratrol is potent and noncompetitive tyrosinase inhibitor with an IC50 value of 1.2 μM for mushroom tyrosinase. Oxyresveratrol is effective against HSV-1, HSV-2 and varicella-zoster virus, and has neuroprotective effects .

HY-N7693

Polyporusterone B	Classification of Application Fields Source classification Polyporaceae Other Diseases Poria cocos Plants Disease Research Fields Steroids	Others
Polyporusterone B is a triterpene carboxylic acid isolated from Polyporus umbellatus Fries. Polyporusterone B has inhibitory effect on free radical-induced lysis of red blood cells (hemolysis) .

HY-121811

Pongamol Lanceolatin C	Structural Classification Leguminosae Ketones, Aldehydes, Acids Source classification Derris trifoliata Lour. Plants Derris indica	Glucosidase
Pongamol (Lanceolatin C) is potent α-glucosidase inhibitor (IC₅₀=103.5 μM) and has free-radical (DPPH) scavenging,antihyperglycemic, and antihyperglycemic activities .

HY-N7774

Echinatine N-oxide	Alkaloids Pyrrole Alkaloids Classification of Application Fields Source classification Heliotropium indicum L. Other Diseases Plants Disease Research Fields Boraginaceae	Others
Echinatine N-oxide is a pyrrolizidine alkaloid found in R. graeca .

HY-130294

Pyracrenic acid	Structural Classification Terpenoids Source classification Pyracantha crenulata (D. Don) Roem. Rosaceae Diterpenoids Plants	Elastase
Pyracrenic acid is an elastase inhibitor (IC₅₀ = 2.42 µM), can be obtained from the bark of Pyracantha crenulata. Pyracrenic acid has DPPH free radical scavenging activity and anti-inflammatory activity .

HY-N8846

dl-Aloesol	Structural Classification Flavonoids Microorganisms Source classification Other Flavonoids	Fungal
dl-Aloesol is a natural product that can be isolated from fungus Aspergillus sp. Aspergillus sp metabolites has cytotoxic, antibacterial, free radical scavenging, anti-parasitic, antiviral and antiproliferative activities, etc .

HY-N1417

Sesamol 1 Publications Verification	Structural Classification Monophenols Classification of Application Fields Sesamum indicum Linn. Source classification Phenols Pedaliaceae Plants Disease Research Fields Cancer	Apoptosis
Sesamol is a constituent of sesame oil. Sesamol shows a free radical scavenging activity. Sesamol shows an IC₅₀=5.95±0.56 μg/mL in the DPPH assay. Anti-oxidant activities . Anticancer activities .

HY-N1521

Rehmannic acid Lantadene A	Triterpenes Classification of Application Fields Terpenoids Verbenaceae Source classification Plants Disease Research Fields Inflammation/Immunology Lantana camaraLinn.	Others
Rehmannic acid (lantadene A) is a compound isolated from Lantana camara. Rehmannic acid shows considerable in vitro antioxidant, free radical scavenging capacity activities in a dose dependant manner. Rehmannic acid is a promising candidate for use as an antioxidant and hepatoprotective agent .

HY-N1579R

Pyrogallol (Standard)	Structural Classification Microorganisms Source classification Phenols Endogenous metabolite	Endogenous Metabolite Fungal Apoptosis
Pyrogallol (Standard) is the analytical standard of Pyrogallol. This product is intended for research and analytical applications. Pyrogallol is a polyphenol compound, which has anti-fungal and anti-psoriatic properties. Pyrogallol is a reductant that is able to generate free radicals, in particular superoxide anions.

HY-N10898

(-)-Dihydroguaiaretic acid	Structural Classification Source classification Eupomatia laurina R.Br. Phenols Polyphenols Plants Eupomatiaceae	Lipoxygenase
(-)-Dihydroguaiaretic acid is a Lipoxygenase inhibitor that has antioxidant activity. (-)-Dihydroguaiaretic acid inhibits the oxidation of unsaturated fatty acids and removes free radicals. (-)-Dihydroguaiaretic acid also has anticancer activity with an IC₅₀ value of 7.49 μM (A549 cells) .

HY-P1934A

Cyclo(L-Phe-L-Pro)	Structural Classification Natural Products Microorganisms Classification of Application Fields Source classification Inflammation/Immunology Disease Research Fields Cancer	Fungal IFNAR Reactive Oxygen Species
Cyclo(L-Phe-L-Pro), isolated from Pseudomonas fluorescens and Pseudomonas alcaligenes cell-free culture supernatants is an antifungal cyclic dipeptide . Cyclo(L-Phe-L-Pro) inhibits IFN-β production by interfering with retinoic-acid-inducible gene-I (RIG-I) activation . Cyclo(L-Phe-L-Pro) exhibits free-radical scavenging activity with the IC₅₀ of 24 µM in the DPPH assay .

HY-N4246R

Bacopaside I (Standard)	Triterpenes Structural Classification Terpenoids Source classification Scrophulariaceae Plants Bacopa monnieri (Linn.) Wettst.	Others
Bacopaside I (Standard) is the analytical standard of Bacopaside I. This product is intended for research and analytical applications. Bacopaside I, a saponin isolated from Bacopa monnieri, exbibits antioxidant properties and free radical scavenging capacity and exerts antidepressant-like effect .

HY-D0187R

L-Glutathione reduced (Standard)	Structural Classification Human Gut Microbiota Metabolites Microorganisms Ketones, Aldehydes, Acids Source classification Endogenous metabolite	Endogenous Metabolite Reactive Oxygen Species Ferroptosis
L-Glutathione reduced (Standard) is the analytical standard of L-Glutathione reduced. This product is intended for research and analytical applications. L-Glutathione reduced (GSH; γ-L-Glutamyl-L-cysteinyl-glycine) is an endogenous antioxidant and is capable of scavenging oxygen-derived free radicals.

HY-B0704

Azelaic acid 1 Publications Verification Nonanedioic acid	Structural Classification Human Gut Microbiota Metabolites Immune System Disorder Microorganisms Classification of Application Fields Ketones, Aldehydes, Acids Source classification Disease markers Other Diseases Endogenous metabolite Disease Research Fields	Antibiotic Endogenous Metabolite
Azelaic acid is a nine-carbon dicarboxylic acid. Azelaic acid has antimicrobial activity against Propionibacterium acnes and Staphylococcus epidermidis through inhibition of microbial cellular prorein synthesis. Azelaic acid has hypopigmentation action resulting from its ability to scavenge free radicals .

HY-N0523

Gallic acid 5+ Cited Publications 3,4,5-Trihydroxybenzoic acid	Structural Classification Classification of Application Fields Anti-aging Source classification Metabolic Disease Plants Endogenous metabolite Microorganisms other families Sunscreen Phenols Polyphenols Cosmetic Research Disease Research Fields Cancer	COX Reactive Oxygen Species Apoptosis Ferroptosis Endogenous Metabolite
Gallic acid (3,4,5-Trihydroxybenzoic acid) is a natural polyhydroxyphenolic compound and an free radical scavenger to inhibit cyclooxygenase-2 (COX-2) . Gallic acid has various activities, such as antimicrobial, antioxidant, antimicrobial, anti-inflammatory, and anticance activities .

Cat. No.	Product Name	Chemical Structure

HY-B2033S1

Pyrimethanil-d5
Pyrimethanil-d₅ is the deuterium labeled Hypoxanthine. Hypoxanthine, a purine derivative, is a potential free radical generator and could be used as an indicator of hypoxia.

HY-N0091S5

Hypoxanthine-d4
Hypoxanthine-d₄ is the deuterium labeled Hypoxanthine[1]. Hypoxanthine, a purine derivative, is a potential free radical generator and could be used as an indicator of hypoxia[2].

HY-N0091S6

Hypoxanthine-d2
Hypoxanthine-d₂ is the deuterium labeled Hypoxanthine[1]. Hypoxanthine, a purine derivative, is a potential free radical generator and could be used as an indicator of hypoxia[2].

HY-N0091S7

Hypoxanthine-15N4 1 Publications Verification
Hypoxanthine- ¹⁵N₄ is the ¹⁵N labeled Hypoxanthine[1]. Hypoxanthine, a purine derivative, is a potential free radical generator and could be used as an indicator of hypoxia[2].

HY-W009300S1

4-Hydroxyestrone-13C6
4-Hydroxyestrone- ¹³C₆ is a ¹³C-labeled Hypoxanthine. Hypoxanthine, a purine derivative, is a potential free radical generator and could be used as an indicator of hypoxia.

HY-41121S1

Boc-L-Ala-OH-3-13C
Boc-L-Ala-OH-3- ¹³C is a ¹³C-labeled Hypoxanthine. Hypoxanthine, a purine derivative, is a potential free radical generator and could be used as an indicator of hypoxia.

HY-42682S1

D(+)-Galactosamine-13C hydrochloride
D(+)-Galactosamine- ¹³C (hydrochloride) is the ¹³C labeled D(+)-Galactosamine hydrochloride. D(+)-Galactosamine (D-Galactosamine) hydrochloride, which is an established experimental toxin, primarily causes liver injury by the generation of free radicals and

HY-W012855S

3-Mercapto-3-methylbutan-1-ol-d6
3-Mercapto-3-methylbutan-1-ol-d₆ is the deuterium labeled Hypoxanthine. Hypoxanthine, a purine derivative, is a potential free radical generator and could be used as an indicator of hypoxia.

HY-D0187S

L-Glutathione reduced-13C2,15N
L-Glutathione reduced- ¹³C₂, ¹⁵N is the ¹³C- and ¹⁵N-labeled L-Glutathione reduced. L-Glutathione reduced (GSH) is an endogenous antioxidant and is capable of scavenging oxygen-derived free radicals.

HY-W008016S

Fmoc-Tyr(tBu)-OH-13C9,15N
Fmoc-Tyr(tBu)-OH- ¹³C₉, ¹⁵N is a ¹⁵N-labeled and ¹³C-labled Hypoxanthine. Hypoxanthine, a purine derivative, is a potential free radical generator and could be used as an indicator of hypoxia.

HY-113248S

3-Nitro-L-tyrosine-d3
3-Nitro-L-tyrosine-d₃ is the deuterium labeled 3-Nitro-L-tyrosine. 3-Nitro-L-tyrosine is a biomarker of nitrogen free radical species modified proteins in systemic autoimmunogenic conditions[1][2].

HY-B0099S

Edaravone-d5
Edaravone-d₅ is a deuterium labeled Edaravone. Edaravone is a strong novel free radical scavenger, and inhibits MMP-9-related brain hemorrhage in rats treated with tissue plasminogen activator[1][2][3][4].

HY-113248S1

3-Nitro-L-tyrosine-13C6
3-Nitro-L-tyrosine- ¹³C₆ is the ¹³C labeled 3-Nitro-L-tyrosine[1]. 3-Nitro-L-tyrosine is a biomarker of nitrogen free radical species modified proteins in systemic autoimmunogenic conditions[2].

HY-B1978S

Iprodione-d5
Iprodione-d₅ is the deuterium labeled Iprodione[1]. Iprodione, a dicarboximide fungicide, has a highly specific action, with a capacity to cause oxidative damage through production of free oxygen radicals (ROS). Iprodione does not appear to be species selective[2].

HY-D0187S4

L-Glutathione reduced-13C
L-Glutathione reduced- ¹³C (GSH- ¹³C; γ-L-Glutamyl-L-cysteinyl-glycine- ¹³C) is ¹³C-labeled L-Glutathione reduced (HY-D0187). L-Glutathione reduced is an endogenous antioxidant and oxygen free radical scavenger.

HY-D0187S5

L-Glutathione reduced-d2
L-Glutathione reduced-d₂ (GSH-d₂; γ-L-Glutamyl-L-cysteinyl-glycine-d₂) is deuterated-labeled L-Glutathione reduced (HY-D0187). L-Glutathione reduced is an endogenous antioxidant and oxygen free radical scavenger.

HY-W015913S

Sodium 2-oxopropanoate-13C3
Sodium 2-oxopropanoate- ¹³C₃ is the ¹³C-labeled Sodium 2-oxopropanoate. Sodium 2-oxopropanoate (Sodium pyruvate), a three-carbon metabolite of Glucose, is a compound produced in the glycolytic pathway. Sodium 2-oxopropanoate is a free radical scavenger that can scavenge ROS[1][2].

HY-W015913S1

Sodium 2-oxopropanoate-d3
Sodium 2-oxopropanoate-d₃ is the deuterium labeled Sodium 2-oxopropanoate[1]. Sodium 2-oxopropanoate (Sodium pyruvate), a three-carbon metabolite of Glucose, is a compound produced in the glycolytic pathway. Sodium 2-oxopropanoate is a free radical scavenger that can scavenge ROS[2][3].

HY-W015913S3

Sodium 2-oxopropanoate-13C
Sodium 2-oxopropanoate- ¹³C is the ¹³C labeled Sodium 2-oxopropanoate[1]. Sodium 2-oxopropanoate (Sodium pyruvate), a three-carbon metabolite of Glucose, is a compound produced in the glycolytic pathway. Sodium 2-oxopropanoate is a free radical scavenger that can scavenge ROS[2][3].

HY-W015913S4

2-Oxopropanoate-13c2 sodium
2-Oxopropanoate- ¹³C₅ (sodium) is the ¹³C labeled Sodium 2-oxopropanoate[1]. Sodium 2-oxopropanoate (Sodium pyruvate), a three-carbon metabolite of Glucose, is a compound produced in the glycolytic pathway. Sodium 2-oxopropanoate is a free radical scavenger that can scavenge ROS[2][3].

HY-D0187S6

L-Glutathione reduced-15N
L-Glutathione reduced- ¹⁵N (GSH- ¹⁵N; γ-L-Glutamyl-L-cysteinyl-glycine- ¹⁵N) is ¹⁵N-labeled L-Glutathione reduced (HY-D0187). L-Glutathione reduced (GSH; γ-L-Glutamyl-L-cysteinyl-glycine) is an endogenous antioxidant that scavenges oxygen free radicals.

HY-N0136S

Taxifolin-d3
Taxifolin-d₃ is deuterium labeled Taxifolin. Taxifolin ((+)-Dihydroquercetin) exhibits important anti-tyrosinase activity. Taxifolin exhibits significant inhibitory activity against collagenase with an IC50 value of 193.3 μM[1]. Taxifolin is an important natural compound with antifibrotic activity. Taxifolin is a free radical scavenger with antioxidant capacity[2].

HY-N0523S

Gallic acid-d2
Gallic acid-d₂ is the deuterium labeled Gallic acid[1]. Gallic acid (3,4,5-Trihydroxybenzoic acid) is a natural polyhydroxyphenolic compound and an free radical scavenger to inhibit cyclooxygenase-2 (COX-2)[2]. Gallic acid has various activities, such as antimicrobial, antioxidant, antimicrobial, anti-inflammatory, and anticance activities[3].

HY-B1899S

Taurodeoxycholic acid-d5

Taurodeoxycholic acid-d₅is the deuterium labeledTaurodeoxycholic acid(HY-B1899) . Taurodeoxycholic acid, a bile acid, stabilizes the mitochondrial membrane, decreases free radical formation. Taurodeoxycholic acid inhibits apoptosis by blocking a calcium-mediated apoptotic pathway as well as caspase-12 activation. Taurodeoxycholic acid exhibits neuroprotective effect in 3-nitropropionic acid induced mouse model or genetic mouse model of Huntington's disease (HD) .

HY-N0136S1

(±)-Taxifolin-13C3

(±)-Taxifolin-13C3 ((±)-Dihydroquercetin-13C3) is a derivative of (±)-Taxifolin, labeled with 13C3. (±)-Taxifolin is the racemate of Taxifolin. Taxifolin exhibits important anti-tyrosinase activity. Taxifolin exhibits significant inhibitory activity against collagenase with an IC₅₀ value of 193.3 μM . Taxifolin is an important natural compound with antifibrotic activity. Taxifolin is a free radical scavenger with antioxidant capacity .

HY-N6937S1

(R,R)-Secoisolariciresinol diglucoside-d6

(R,R)-Secoisolariciresinol diglucoside-d₆ is deuterated labeled (R,R)-Secoisolariciresinol diglucoside (HY-N6937). (R,R)-Secoisolariciresinol diglucoside ((R,R)-SDG) is the minor isomer of Secoisolariciresinol diglucoside in flaxseed. (R,R)-Secoisolariciresinol diglucoside ((R,R)-SDG) possesses antioxidant and free radical scavenging activities and DNA-radioprotective properties. (R,R)-Secoisolariciresinol diglucoside ((R,R)-SDG) inhibits myeloperoxidase (MPO) activity by suppressing both the peroxidase and chlorination cyclesin inflammatory cells .

HY-128463S

N-tert-Butyl-α-phenylnitrone-d14

N-tert-Butyl-α-phenylnitrone-d₁₄ is the deuterium labeled N-tert-Butyl-α-phenylnitrone[1]. N-tert-Butyl-α-phenylnitrone is a nitrone-based free radical scavenger that forms nitroxide spin adducts. N-tert-Butyl-α-phenylnitrone inhibits COX2 catalytic activity. N-tert-Butyl-α-phenylnitrone has potent ROS scavenging, anti-inflammatory, neuroprotective, anti-aging and anti-diabetic activities, and can penetrate the blood-brain barrier[2][3][4][5].

Cat. No.	Product Name		Classification

HY-131803

3'-Azido-3'-deoxyguanosine		Azide
Urolignoside is an antioxidant with free radical scavenging activity. Urolignoside potently scavenges DPPH radical, and exhibits antioxidant to β-carotene-lineoleate model . 3'-Azido-3'-deoxyguanosine is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

Cat. No.	Product Name		Classification

HY-N0523A

Gallic acid hydrate 5+ Cited Publications 3,4,5-Trihydroxybenzoic acid hydrate		Antioxidants Chelating Agents Preservatives
Gallic acid (3,4,5-Trihydroxybenzoic acid) hydrate is a natural polyhydroxyphenolic compound and an free radical scavenger to inhibit cyclooxygenase-2 (COX-2) . Gallic acid hydrate has various activities, such as antimicrobial, antioxidant, antimicrobial, anti-inflammatory, and anticance activities .

HY-Y0320

Dimethyl sulfoxide 130+ Cited Publications DMSO		Solvents
Dimethyl sulfoxide (DMSO) is an aprotic solvent that dissolves polar and non-polar compounds, including water-insoluble therapeutic and toxic agents. Dimethyl sulfoxide (DMSO) has a strong affinity for water and can rapidly penetrate or enhance the penetration of other substances into biological membranes. Dimethyl sulfoxide also has potential free radical scavenging and anticholinesterase effects and may affect coagulation activity. Dimethyl sulfoxide also induces histamine release from mast cells but is thought to have low systemic toxicity. Dimethyl sulfoxide also exhibits antifreeze and antibacterial properties . MCE provides Dimethyl sulfoxide that complies with the inspection standards (Ch.P) of Part 4 of the Chinese Pharmacopoeia (2020 Edition).

HY-W011426

Isopropyl palmitate Propan-2-yl hexadecanoate		Solvents
Isopropyl palmitate is an fatty acid ester. Isopropyl palmitate can be used for design and characterization of bioactive bilayer films. The bilayer membrane not only has the ability to scavenge free radicals and inhibit lipid peroxidation, but also can inhibit the growth of known foodborne pathogens. Isopropyl palmitate can be used as an excipient, such as lubricant, oily carrier, solvent, controlled-release transdermal film. Pharmaceutical excipients, or pharmaceutical auxiliaries, refer to other chemical substances used in the pharmaceutical process other than pharmaceutical ingredients. Pharmaceutical excipients generally refer to inactive ingredients in pharmaceutical preparations, which can improve the stability, solubility and processability of pharmaceutical preparations. Pharmaceutical excipients also affect the absorption, distribution, metabolism, and elimination (ADME) processes of co-administered drugs .

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