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Results for "

DPPH

" in MedChemExpress (MCE) Product Catalog:

By Targets:	Aldose Reductase (4) Amylases (2) Apoptosis (4) Autophagy (5) Bacterial (5) Beta-secretase (2) CDK (1) Cholinesterase (ChE) (9) COX (3) Cytochrome P450 (1) Drug Metabolite (2) EGFR (1) Elastase (1) Endogenous Metabolite (5) Ferroptosis (1) Fungal (3) FXR (1) Glucosidase (3) HIV (1) HSV (2) IFNAR (1) Influenza Virus (2) Interleukin Related (1) Isotope-Labeled Compounds (1) Keap1-Nrf2 (1) Lipoxygenase (3) Microtubule/Tubulin (1) Monoamine Oxidase (1) NF-κB (1) NO Synthase (2) NOD-like Receptor (NLR) (1) Nucleoside Antimetabolite/Analog (1) P-glycoprotein (1) Parasite (1) Phosphodiesterase (PDE) (1) Pim (1) Reactive Oxygen Species (11) SARS-CoV (1) TNF Receptor (1) TrxR (1) Tyrosinase (4) Xanthine Oxidase (1) α-synuclein (1)
By Research Areas:	Cancer (28) Cardiovascular Disease (9) Infection (12) Inflammation/Immunology (51) Metabolic Disease (15) Neurological Disease (18)
Click Chemistry:	Azide (1)

126

Inhibitors & Agonists

Peptides

Natural
Products

Isotope-Labeled Compounds

Click Chemistry

Cat. No.	Product Name	Target	Research Areas	Chemical Structure

HY-112053

*DPPH* Maximum Cited Publications 18 Publications Verification 2,2-Diphenyl-1-picrylhydrazyl	Others	Metabolic Disease
DPPH (2,2-Diphenyl-1-picrylhydrazyl) is a stable free radical that can be used to measure the radical scavenging activity of antioxidants. The odd electron of nitrogen atom in DPPH is reduced by receiving a hydrogen atom from antioxidants to the corresponding hydrazine. DPPH method may be utilized in aqueous and nonpolar organic solvents and can be used to examine both hydrophilic and lipophilic antioxidants .

HY-N3141

Olivil (-)-Olivile; Vladinol C	Others	Others
Olivil ((-)-Olivile) is a lignan that has weak DPPH radical-scavenging activity (EC₅₀: 176 μM) .

HY-113121

Vanillylmandelic acid 2 Publications Verification	Drug Metabolite Endogenous Metabolite	Cardiovascular Disease
Vanillylmandelic acid is the endproduct of epinephrine and norepinephrine metabolism. Vanillylmandelic acid can be used as an indication of the disorder in neurotransmitter metabolism as well. Vanillylmandelic acid has antioxidant activity towards DPPH radical with an IC₅₀ value of 33 μM .

HY-112053R

DPPH (Standard)	Others	Metabolic Disease
DPPH (Standard) is the analytical standard of DPPH. This product is intended for research and analytical applications. DPPH (2,2-Diphenyl-1-picrylhydrazyl) is a stable free radical that can be used to measure the radical scavenging activity of antioxidants. The odd electron of nitrogen atom in DPPH is reduced by receiving a hydrogen atom from antioxidants to the corresponding hydrazine. DPPH method may be utilized in aqueous and nonpolar organic solvents and can be used to examine both hydrophilic and lipophilic antioxidants .

HY-N3858

Erythristemine	Others	Inflammation/Immunology
Erythristemine is an alkaloid that can be isolated from Erythrina lysistemon. Erythristemine has weak DPPH radical scavenging properties .

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-N8660

Cimicifugic acid B	Others	Metabolic Disease
Cimicifugic acid B is an antioxidant with an IC₅₀ of 21 µM in the DPPH assay .

HY-N12897

JBIR-94	Others	Others
JBIR-94 is a phenolic compound and can be isolated from Streptomyces. JBIR-94 has DPPH radical scavenging activity with an IC₅₀ value of 11.4 μM .

HY-N12941

Macarangin	Reactive Oxygen Species NOD-like Receptor (NLR)	Inflammation/Immunology
Macarangin can be isolated from propolis. Macarangin has DPPH radical-scavenging activity and shows anti-inflammatory activities via inhibiting the activation process of NLRP3 inflammasome .

HY-N8579

Eugenyl benzoate	Others	Inflammation/Immunology
Eugenyl benzoate has the potency for scavenging of DPPH radical. Eugenyl Benzoate Derivatives can be used for development of BCL-2 inhibitors .

HY-N12862

Floramanoside A	Aldose Reductase	Inflammation/Immunology
Floramanoside A is a flavonol glycoside that can be isolated from the flowers of Abelmouschus manihot. Floramanoside A has DPPH scavenging (IC₅₀: 10.1 μM) and aldose reductase inhibition activities (IC₅₀: 17.8 μM) .

HY-N11895

Isorabaichromone	Reactive Oxygen Species	Inflammation/Immunology
Isorabaichromone is a potent antioxidant agent. Isorabaichromone shows a potent antioxidative activity and exhibits DPPH radical and superoxide anion scavenging activities .

HY-N8163

Kaempferol-3-O-α-L-rhamnopyranosyl-(1→6)-β-D-glucopyranosyl-(1→2)-β-D-glucopyranoside	Others	Others
Kaempferol-3-O-α-L-rhamnopyranosyl-(1→6)-β-D-glucopyranosyl-(1→2)-β-D-glucopyranoside is an antioxidant with an IC₅₀ of 26.6 μM (DPPH assay) .

HY-N10985

Xanthone V1a	Others	Inflammation/Immunology Cancer
Xanthone V1a has antioxidant activity against the *DPPH* radical (IC₅₀: 10.43 µM). Xanthone V1a has cytotoxicity against cancer cells .

HY-N9953

Chrysophanol 8-O-β-D-(6′-O-galloyl)glucopyranoside	Others	Inflammation/Immunology
Chrysophanol 8-O-β-D-(6’-O-galloyl)glucopyranoside, an anthraquinone glucoside, can be isolated from Rheum undulatum L. Chrysophanol 8-O-β-D-(6’-O-galloyl)glucopyranoside has potent DPPH radical and ?O₂ ^- scavenging activity .

HY-130294

Pyracrenic acid	Elastase	Inflammation/Immunology
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-N3349A

(-)-Lyoniresinol	Others	Others
(-)-Lyoniresinol is a lignan isolated from the Tarenna attenuata with antioxidant activities. (-)-Lyoniresinol has radical scavenging activities against DPPH with an IC₅₀ of 82.4 μM .

HY-N3349

Lyoniresinol	Others	Others
Lyoniresinol is a lignan isolated from the Tarenna attenuata with antioxidant activities. Lyoniresinol has radical scavenging activities against DPPH with an IC₅₀ of 82.4 μM .

HY-111523

Isomahanine	Others	Metabolic Disease
Isomahanine, carbazole alkaloid, is an antioxidative agent. Isomahanine has DPPH radical scavenging activity with an IC₅₀ value of 24 μM .

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-N10020

Patulitrin	Lipoxygenase	Inflammation/Immunology
Patulitrin has scavenging effect in the DPPH radical. Patulitrin inhibits soybean lipoxygenase. Patulitrin also has antihypertensive effect. Patulitrin is an antioxidant flavonoid that can be isolated from Anthemis tinctoria .

HY-155123

Antioxidant agent-13	Monoamine Oxidase Xanthine Oxidase	Inflammation/Immunology
Antioxidant agent-13 (Compound 5f) is an antioxidant agent. Antioxidant agent-13 inhibits *DPPH* and FRAP with IC₅₀s of 80.33 and 85.69 μM. Antioxidant agent-13 also inhibits LOX and XO enzymes with IC₅₀s of 16.85 and 23.01 μM .

HY-121811

Pongamol Lanceolatin C	Glucosidase	Metabolic Disease Inflammation/Immunology
Pongamol (Lanceolatin C) is potent α-glucosidase inhibitor (IC₅₀=103.5 μM) and has free-radical (DPPH) scavenging,antihyperglycemic, and antihyperglycemic activities .

HY-N8194

Syringetin-3-O-glucoside Syringetin 3-O-β-D-glucoside	Others	Neurological Disease
Syringetin-3-O-glucosid (Syringetin 3-O-β-D-glucoside), a flavonol glycoside, shows relatively weak DPPH and ABTS radical scavenging activity .

HY-N9051

6-Prenylquercetin-3-Me ether	Glucosidase	Inflammation/Immunology Cancer
6-Prenylquercetin-3-Me ether is a natural product that can be extracted from G. uralensis leaves. 6-Prenylquercetin-3-Me ether has radical scavenging activity toward *DPPH. 6-Prenylquercetin-3-Me ether also has inhibitory activity against α-glucosidase* .

HY-N3985

Gyrophoric acid	Others	Cancer
Gyrophoric acid is a good ultraviolet filter in lichen populations. Gyrophoric acid shows DPPH radical scavenging activity with an IC₅₀ value of 105.75 μg/ml .

HY-W357738

Urease-IN-14	Bacterial	Infection
Urease-IN-14 (compound 15) is an urease inhibitor and antioxidant. Urease-IN-14 shows DPPH radical scavenging and urease inhibitory activities with IC₅₀ values 151.7 μM and 41.6 μM, respectively .

HY-156711

Ternatumoside II	Others	Inflammation/Immunology
Ternatumoside II is a flavonoid glycoside that can be isolated from R. crenulata. Ternatumoside II can stimulate IFN-γ expression. Ternatumoside II has radical-scavenging activities (IC₅₀s: 260.5 μM and 320.2 μM for DPPH and ABTS) .

HY-149670

Ferroptosis-IN-3	Ferroptosis	Inflammation/Immunology
Ferroptosis-IN-3 (Compound 25) is a ferroptosis inhibitor. Ferroptosis-IN-3 inhibits RSL3-induced ferroptosis (EC₅₀: 8.6?nM in HT-1080?cells). Ferroptosis-IN-3 scavenges DPPH and ABTS radicals (EC₅₀: 3.94?and 6.3 μM respectively). Ferroptosis-IN-3 decreases lipid peroxidation .

HY-N13185

POPi	Endogenous Metabolite	Others
POPi (phloridzin oxidation product i) is a colorless oxidation product of phloridzin catalyzed by the apple polyphenol oxidase with DPPH radicalscavenging activity. POPi can be utilized in antioxidant research .

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-N9895

3,5-Dicaffeoyl-epi-quinic acid	Others	Infection Inflammation/Immunology
3,5-Dicaffeoyl-epi-quinic acid can be extracted from Chrysanthemum morifolium. 3,5-Dicaffeoyl-epi-quinic acid has antioxidant activities. 3,5-Dicaffeoyl-epi-quinic acid can scavenge *DPPH* radical and superoxide anion radical, with IC₅₀s of 5.6 and 2.9 μg/mL respectively .

HY-149473

AChE-IN-39	Cholinesterase (ChE)	Neurological Disease
AChE-IN-39 (Compound 7c) is an AChE inhibitor (IC₅₀: 0.058 μM). AChE-IN-39 has DPPH scavenging activity. AChE-IN-39 improves the cognitive impairment in AlCl₃-induced amnesia animal model. AChE-IN-39 can be used for research of Alzheimer's disease .

HY-N7155

2,4,7-Trihydroxy-9,10-dihydrophenanthrene	Reactive Oxygen Species	Inflammation/Immunology
2,4,7-Trihydroxy-9,10-dihydrophenanthrene is a dihydrophenanthrene derivative that can be isolated from the air-dried whole plant of Pholidota chinensis Lindl.. 2,4,7-Trihydroxy-9,10-dihydrophenanthrene shows potent activities of IC₅₀ at 16.2 μM in *DPPH* radical-scavenging assay .

HY-N1353

Rhamnocitrin	Others	Cardiovascular Disease Inflammation/Immunology
Rhamnocitrin is a flavonoid isolated from astragalus complanatus R. Br. (Sha-yuan-zi) . Rhamnocitrin is a scavenger of DPPH with an IC₅₀ of 28.38 mM. Rhamnocitrin has anti-oxidant, anti-inflammatory and an-tiatherosclerosis activity .

HY-W001542

5-Hydroxyoxindole	Reactive Oxygen Species	Neurological Disease Metabolic Disease Cancer
5-Hydroxyoxindole is a structural analog of uric acid. 5-Hydroxyoxindole has *DPPH* radical scavenging activities and lipid peroxidation-inhibitory activities. 5-Hydroxyoxindole can be used for the research of oxidative stress-mediated disorders .

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-N10742

Maritimetin	Reactive Oxygen Species	Cardiovascular Disease
Maritimein is an aurone that can be isolated from Coreopsis tinctoria. Maritimein shows strong diphenyl(2,4,6-trinitrophenyl)iminoazanium (DPPH) radical-scavenging activity with an IC₅₀ value of 4.12 μM. Maritimein can be used for the research of cardiovascular disease .

HY-161776

P-gp/CDK2-IN-1	P-glycoprotein CDK	Cancer
P-gp/CDK2-IN-1 (Compound 4j) is an inhibitor for is inhibitor for P-glycoprotein (P-gp) and for cyclin-dependent kinase-2 (CDK2). P-gp/CDK2-IN-1 inhibits the proliferation of cancer cells SW-480 and MCF-7 wit IC₅₀ of 38.6 μM and 26.6 μM. P-gp/CDK2-IN-1 exhibits antioxidant efficacy with EC₅₀ of 580 μM in DPPH experiment .

HY-149008

α-Amylase-IN-3	Amylases	Metabolic Disease Cancer
α-Amylase-IN-3 (Compound 4) is a none-competitive type of α-Amylase inhibitor with an IC₅₀ value of 18.04 μM, which also has radical scavenging activities (DPPH and ABTS) with IC₅₀ values of 16.04 μM (DPPH) and 16.99 μM (ABTS), respectively. α-Amylase-IN-3 has good protein–ligand interactions profile against α-Amylase. α-Amylase-IN-3 may have pharmacological activities such as anti-oxidative, anti-inflammatory inhibitory, which is helpful for the development of diabetes and oxidative stress associated disease .

HY-N1353R

Rhamnocitrin (Standard)	Others	Cardiovascular Disease Inflammation/Immunology
Rhamnocitrin (Standard) is the analytical standard of Rhamnocitrin. This product is intended for research and analytical applications. Rhamnocitrin is a flavonoid isolated from astragalus complanatus R. Br. (Sha-yuan-zi) . Rhamnocitrin is a scavenger of DPPH with an IC₅₀ of 28.38 mM. Rhamnocitrin has anti-oxidant, anti-inflammatory and an-tiatherosclerosis activity .

HY-N10927

2,11,12-Trihydroxy-7,20-epoxy-8,11,13-abietatriene	Others	Others
2,11,12-Trihydroxy-7,20-epoxy-8,11,13-abietatriene, a diterpenoid, has significant effects on DPPH radical scavenging activity with an IC₅₀ value of 20.0 µM. 2,11,12-Trihydroxy-7,20-epoxy-8,11,13-abietatriene shows potent antioxidant activity .

HY-149976

Pim-1 kinase inhibitor 4	Pim	Cancer
Pim-1 kinase inhibitor 4 (Compound 10f) is a Pim-1 kinase inhibitor (IC₅₀: 17.01 nM). Pim-1 kinase inhibitor 4 also has antioxidant activity and inhibits DPPH. Pim-1 kinase inhibitor 4 induces apoptosis in PC-3 cell, and inhibits PC-3 cell growth with an IC₅₀ of 16 nM. Pim-1 kinase inhibitor 4 can be used for research of prostate cancer .

HY-N3421

Koaburaside	Interleukin Related TNF Receptor Influenza Virus	Infection Inflammation/Immunology Cancer
Koaburaside is a cytoprotective and anti-inflammatory natural compound. Koaburaside shows antioxidant activity with an IC₅₀ of 9.0 μM for DPPH-free radical scavenging assay. Koaburaside inhibits histamine release and expressions of IL-6 and TNF-α in human mast cells. Koaburaside also effectively inhibits influenza A neuraminidase .

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-159152

PQM-164	Reactive Oxygen Species α-synuclein Keap1-Nrf2	Neurological Disease
PQM-164 (Compound 3e) has antioxidant activity (IC₅₀: 0.93 μM for DPPH radical). PQM-164 shows anti-inflammatory activity against 6-OHDA (HY-B1081A)-induced neuronal damage in activated microglial cells. PQM-164 decreases the accumulation of α-synuclein. PQM-164 promotes nuclear translocation of Nrf2 and its transcriptional activity. PQM-164 can be used for research of Parkinson’s disease .

HY-111898

Epirosmanol	Others	Cancer
Epirosmanol is a nature diterpene lactone from S. officinalis. Epirosmanol shows anti-cancer activity and inhibits melanin biosynthesis against melanoma cells. Epirosmanol also exhibits DPPH radical scavenging activity .

HY-149313

α‑Amylase-IN-1	Amylases	Metabolic Disease
α Amylase-IN-1 (Compound 11) is an α-Amylase inhibitor with an IC₅₀ value of 0.5509 μM. α Amylase-IN-1 has antioxidant activity with an IC₅₀ value of 53.49 μM for scavenging *DPPH* free radicals. IC₅₀ can be used in the study of diabetes and oxidative stress-related diseases.

HY-146169

Antitumor agent-68	Reactive Oxygen Species Microtubule/Tubulin	Cancer
Antitumor agent-68 is a potent tubulin inhibitor. Antitumor agent-68 shows potent anticancer activity with IC₅₀s of 3.6 and 3.8 μM for HeLa and MCF-7 cells, respectively. Antitumor agent-68 exhibits good scavenging activity of ROS and DPPH radical in a dose-dependent manner . Antitumor agent-68 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

HY-159143

BChE-IN-33	Cholinesterase (ChE) Cytochrome P450	Neurological Disease
BChE-IN-33 (compound 4r), an arylaminonaphthol derivative, is a potent butyrylcholinesterase (BChE) inhibitor with an IC₅₀ of 14.78 µM. BChE-IN-33 also inhibits CYP2C19, CYP2C9, CYP2D6. BChE-IN-33 shows potent antioxidant activity with IC₅₀ values of 150.48 μM, 2.56 μM and 4.61 μM by DPPH, ABTS, Ferric-phenanthroline assay, respectively. BChE-IN-33 has the potential for Alzheimer research .

Cat. No.	Product Name	Target	Research Area

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-P5316

MHLWAAK	Peptides	Inflammation/Immunology
MHLWAAK is an antioxidant active peptide that can be isolated from pancreatin hydrolysate of C-phycocyanin. MHLWAAK has high DPPH and ABTS radical scavenging ability. MHLWAAK protects zebrafish larvae from H₂O₂-induced oxidative damage .

HY-P5317

MAQAAEYYR	Peptides	Inflammation/Immunology
MAQAAEYYR is an antioxidant active peptide that can be isolated from pancreatin hydrolysate of C-phycocyanin. MAQAAEYYR has high DPPH and ABTS radical scavenging ability. MAQAAEYYR protects zebrafish larvae from H₂O₂-induced oxidative damage .

HY-P5318

MDYYFEER	Peptides	Inflammation/Immunology
MDYYFEER is an antioxidant active peptide that can be isolated from pancreatin hydrolysate of C-phycocyanin. MDYYFEER has high DPPH and ABTS radical scavenging ability. MDYYFEER protects zebrafish larvae from H₂O₂-induced oxidative damage .

HY-P5316A

MHLWAAK TFA	Peptides	Inflammation/Immunology
MHLWAAK TFA is an antioxidant active peptide that can be isolated from pancreatin hydrolysate of C-phycocyanin. MHLWAAK TFA has high DPPH and ABTS radical scavenging ability. MHLWAAK TFA protects zebrafish larvae from H₂O₂-induced oxidative damage .

HY-P5317A

MAQAAEYYR TFA	Peptides	Inflammation/Immunology
MAQAAEYYR TFA is an antioxidant active peptide that can be isolated from pancreatin hydrolysate of C-phycocyanin. MAQAAEYYR TFA has high DPPH and ABTS radical scavenging ability. MAQAAEYYR TFA protects zebrafish larvae from H₂O₂-induced oxidative damage .

HY-P5318A

MDYYFEER TFA	Peptides	Inflammation/Immunology
MDYYFEER TFA is an antioxidant active peptide that can be isolated from pancreatin hydrolysate of C-phycocyanin. MDYYFEER TFA has high DPPH and ABTS radical scavenging ability. MDYYFEER TFA protects zebrafish larvae from H₂O₂-induced oxidative damage .

Cat. No.	Product Name	Category	Target	Chemical Structure

HY-N3141

Olivil (-)-Olivile; Vladinol C	Structural Classification Monophenols Oleaceae Source classification Lignans Olea europaea L. Phenols Phenylpropanoids Plants	Others
Olivil ((-)-Olivile) is a lignan that has weak DPPH radical-scavenging activity (EC₅₀: 176 μM) .

HY-113121

Vanillylmandelic acid 2 Publications Verification	Cardiovascular Disease Structural Classification Monophenols Microorganisms Classification of Application Fields Ketones, Aldehydes, Acids Phenols Endogenous metabolite Disease Research Fields	Drug Metabolite Endogenous Metabolite
Vanillylmandelic acid is the endproduct of epinephrine and norepinephrine metabolism. Vanillylmandelic acid can be used as an indication of the disorder in neurotransmitter metabolism as well. Vanillylmandelic acid has antioxidant activity towards DPPH radical with an IC₅₀ value of 33 μM .

HY-N8163

Kaempferol-3-O-α-L-rhamnopyranosyl-(1→6)-β-D-glucopyranosyl-(1→2)-β-D-glucopyranoside	Flavonols Structural Classification Flavonoids Classification of Application Fields Leguminosae Source classification Sophora japonica (L.) Schott Other Diseases Phenols Polyphenols Plants Disease Research Fields	Others
Kaempferol-3-O-α-L-rhamnopyranosyl-(1→6)-β-D-glucopyranosyl-(1→2)-β-D-glucopyranoside is an antioxidant with an IC₅₀ of 26.6 μM (DPPH assay) .

HY-N3858

Erythristemine	Structural Classification Alkaloids Erythrina lysistemon Hutch. Leguminosae Source classification Plants	Others
Erythristemine is an alkaloid that can be isolated from Erythrina lysistemon. Erythristemine has weak DPPH radical scavenging properties .

HY-N8660

Cimicifugic acid B	Structural Classification Source classification Ranunculaceae Phenols Polyphenols Plants Cimicifuga racemosa (L.) Nutt.	Others
Cimicifugic acid B is an antioxidant with an IC₅₀ of 21 µM in the DPPH assay .

HY-N12897

JBIR-94	Structural Classification Microorganisms Antibiotics Source classification Other Antibiotics	Others
JBIR-94 is a phenolic compound and can be isolated from Streptomyces. JBIR-94 has DPPH radical scavenging activity with an IC₅₀ value of 11.4 μM .

HY-N12941

Macarangin	Structural Classification Flavonols Flavonoids Animals Source classification	Reactive Oxygen Species NOD-like Receptor (NLR)
Macarangin can be isolated from propolis. Macarangin has DPPH radical-scavenging activity and shows anti-inflammatory activities via inhibiting the activation process of NLRP3 inflammasome .

HY-N8579

Eugenyl benzoate	Structural Classification Microorganisms Simple Phenylpropanols Source classification Phenylpropanoids	Others
Eugenyl benzoate has the potency for scavenging of DPPH radical. Eugenyl Benzoate Derivatives can be used for development of BCL-2 inhibitors .

HY-N12862

Floramanoside A	Malvaceae Structural Classification Flavonoids Flavones Source classification Abelmoschus manihot (Linn.) Medicus Plants	Aldose Reductase
Floramanoside A is a flavonol glycoside that can be isolated from the flowers of Abelmouschus manihot. Floramanoside A has DPPH scavenging (IC₅₀: 10.1 μM) and aldose reductase inhibition activities (IC₅₀: 17.8 μM) .

HY-N11895

Isorabaichromone	Structural Classification Liliaceae Simple Phenylpropanols Source classification Phenols Polyphenols Aloe vera (L.) Burm. f. Phenylpropanoids Plants	Reactive Oxygen Species
Isorabaichromone is a potent antioxidant agent. Isorabaichromone shows a potent antioxidative activity and exhibits DPPH radical and superoxide anion scavenging activities .

HY-N10985

Xanthone V1a	Structural Classification Flavonoids Maclura fruticosa (Roxburgh) Corner Source classification Plants Moraceae Other Flavonoids	Others
Xanthone V1a has antioxidant activity against the *DPPH* radical (IC₅₀: 10.43 µM). Xanthone V1a has cytotoxicity against cancer cells .

HY-N9953

Chrysophanol 8-O-β-D-(6′-O-galloyl)glucopyranoside	Quinones Structural Classification Anthraquinones Polygonaceae Source classification Rheum rhabarbarum Linnaeus Plants	Others
Chrysophanol 8-O-β-D-(6’-O-galloyl)glucopyranoside, an anthraquinone glucoside, can be isolated from Rheum undulatum L. Chrysophanol 8-O-β-D-(6’-O-galloyl)glucopyranoside has potent DPPH radical and ?O₂ ^- scavenging activity .

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-N3349A

(-)-Lyoniresinol	Classification of Application Fields Source classification Lignans Other Diseases Rubiaceae Phenols Polyphenols Phenylpropanoids Plants Disease Research Fields Tarenna attenuata (Voigt) Hutchins.	Others
(-)-Lyoniresinol is a lignan isolated from the Tarenna attenuata with antioxidant activities. (-)-Lyoniresinol has radical scavenging activities against DPPH with an IC₅₀ of 82.4 μM .

HY-N3349

Lyoniresinol	Structural Classification Toona sinensis (A. Juss.) Roem. Source classification Lignans Phenylpropanoids Plants Meliaceae	Others
Lyoniresinol is a lignan isolated from the Tarenna attenuata with antioxidant activities. Lyoniresinol has radical scavenging activities against DPPH with an IC₅₀ of 82.4 μM .

HY-111523

Isomahanine	Alkaloids Rutaceae Murraya koenigii (L.) Spreng Plants Indole Alkaloids	Others
Isomahanine, carbazole alkaloid, is an antioxidative agent. Isomahanine has DPPH radical scavenging activity with an IC₅₀ value of 24 μM .

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-N10020

Patulitrin	Structural Classification Flavonols Flavonoids Ohwia caudata (Thunberg) H. Ohashi Source classification Plants Compositae	Lipoxygenase
Patulitrin has scavenging effect in the DPPH radical. Patulitrin inhibits soybean lipoxygenase. Patulitrin also has antihypertensive effect. Patulitrin is an antioxidant flavonoid that can be isolated from Anthemis tinctoria .

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-N8194

Syringetin-3-O-glucoside Syringetin 3-O-β-D-glucoside	Flavonols Flavonoids Source classification Vitis vinifera cv. Zalema Phenols Polyphenols Plants Vitaceae	Others
Syringetin-3-O-glucosid (Syringetin 3-O-β-D-glucoside), a flavonol glycoside, shows relatively weak DPPH and ABTS radical scavenging activity .

HY-N9051

6-Prenylquercetin-3-Me ether	Structural Classification Flavonoids Flavones Leguminosae Source classification Plants Glycyrrhiza uralensis Fisch.	Glucosidase
6-Prenylquercetin-3-Me ether is a natural product that can be extracted from G. uralensis leaves. 6-Prenylquercetin-3-Me ether has radical scavenging activity toward *DPPH. 6-Prenylquercetin-3-Me ether also has inhibitory activity against α-glucosidase* .

HY-N3985

Gyrophoric acid	Structural Classification Microorganisms Classification of Application Fields Source classification Phenols Polyphenols Disease Research Fields Cancer	Others
Gyrophoric acid is a good ultraviolet filter in lichen populations. Gyrophoric acid shows DPPH radical scavenging activity with an IC₅₀ value of 105.75 μg/ml .

HY-156711

Ternatumoside II	Structural Classification Flavonoids Flavones Source classification Crassulaceae Plants Rhodiola crenulata (HK. f. et.Thoms) H. Ohba	Others
Ternatumoside II is a flavonoid glycoside that can be isolated from R. crenulata. Ternatumoside II can stimulate IFN-γ expression. Ternatumoside II has radical-scavenging activities (IC₅₀s: 260.5 μM and 320.2 μM for DPPH and ABTS) .

HY-N13185

POPi	Structural Classification Malus pumila Mill. Source classification Rosaceae Phenols Polyphenols Plants	Endogenous Metabolite
POPi (phloridzin oxidation product i) is a colorless oxidation product of phloridzin catalyzed by the apple polyphenol oxidase with DPPH radicalscavenging activity. POPi can be utilized in antioxidant research .

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-N9895

3,5-Dicaffeoyl-epi-quinic acid	Structural Classification Source classification Dendranthema morifolium (Ramat.) Tzvel. Phenols Polyphenols Plants Compositae	Others
3,5-Dicaffeoyl-epi-quinic acid can be extracted from Chrysanthemum morifolium. 3,5-Dicaffeoyl-epi-quinic acid has antioxidant activities. 3,5-Dicaffeoyl-epi-quinic acid can scavenge *DPPH* radical and superoxide anion radical, with IC₅₀s of 5.6 and 2.9 μg/mL respectively .

HY-N7155

2,4,7-Trihydroxy-9,10-dihydrophenanthrene	Classification of Application Fields Orchidaceae Source classification Phenols Polyphenols Pholidota chinensis Lindl. Plants Disease Research Fields Inflammation/Immunology	Reactive Oxygen Species
2,4,7-Trihydroxy-9,10-dihydrophenanthrene is a dihydrophenanthrene derivative that can be isolated from the air-dried whole plant of Pholidota chinensis Lindl.. 2,4,7-Trihydroxy-9,10-dihydrophenanthrene shows potent activities of IC₅₀ at 16.2 μM in *DPPH* radical-scavenging assay .

HY-N1353

Rhamnocitrin	Cardiovascular Disease Flavonols Structural Classification Flavonoids other families Classification of Application Fields Source classification Phenols Polyphenols Plants Disease Research Fields	Others
Rhamnocitrin is a flavonoid isolated from astragalus complanatus R. Br. (Sha-yuan-zi) . Rhamnocitrin is a scavenger of DPPH with an IC₅₀ of 28.38 mM. Rhamnocitrin has anti-oxidant, anti-inflammatory and an-tiatherosclerosis activity .

HY-W001542

5-Hydroxyoxindole	Structural Classification Neurological Disease Classification of Application Fields Source classification Haldina cordifolia (Roxb.) Ridsd. Metabolic Disease Plants Indole Alkaloids Alkaloids Monophenols Rubiaceae Phenols Disease Research Fields	Reactive Oxygen Species
5-Hydroxyoxindole is a structural analog of uric acid. 5-Hydroxyoxindole has *DPPH* radical scavenging activities and lipid peroxidation-inhibitory activities. 5-Hydroxyoxindole can be used for the research of oxidative stress-mediated disorders .

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-N10742

Maritimetin	Structural Classification Cercis chinensis Bunge Source classification Phenols Polyphenols Plants Compositae	Reactive Oxygen Species
Maritimein is an aurone that can be isolated from Coreopsis tinctoria. Maritimein shows strong diphenyl(2,4,6-trinitrophenyl)iminoazanium (DPPH) radical-scavenging activity with an IC₅₀ value of 4.12 μM. Maritimein can be used for the research of cardiovascular disease .

HY-N1353R

Rhamnocitrin (Standard)	Flavonols Structural Classification Flavonoids other families Source classification Phenols Polyphenols Plants	Others
Rhamnocitrin (Standard) is the analytical standard of Rhamnocitrin. This product is intended for research and analytical applications. Rhamnocitrin is a flavonoid isolated from astragalus complanatus R. Br. (Sha-yuan-zi) . Rhamnocitrin is a scavenger of DPPH with an IC₅₀ of 28.38 mM. Rhamnocitrin has anti-oxidant, anti-inflammatory and an-tiatherosclerosis activity .

HY-N10927

2,11,12-Trihydroxy-7,20-epoxy-8,11,13-abietatriene	Structural Classification Terpenoids Labiatae Source classification Cassia Diterpenoids Plants	Others
2,11,12-Trihydroxy-7,20-epoxy-8,11,13-abietatriene, a diterpenoid, has significant effects on DPPH radical scavenging activity with an IC₅₀ value of 20.0 µM. 2,11,12-Trihydroxy-7,20-epoxy-8,11,13-abietatriene shows potent antioxidant activity .

HY-N3421

Koaburaside	Structural Classification Eucommia ulmoides Oliver Source classification Eucommiaceae Plants Saccharides Monosaccharides	Interleukin Related TNF Receptor Influenza Virus
Koaburaside is a cytoprotective and anti-inflammatory natural compound. Koaburaside shows antioxidant activity with an IC₅₀ of 9.0 μM for DPPH-free radical scavenging assay. Koaburaside inhibits histamine release and expressions of IL-6 and TNF-α in human mast cells. Koaburaside also effectively inhibits influenza A neuraminidase .

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-111898

Epirosmanol	Source classification Plants	Others
Epirosmanol is a nature diterpene lactone from S. officinalis. Epirosmanol shows anti-cancer activity and inhibits melanin biosynthesis against melanoma cells. Epirosmanol also exhibits DPPH radical scavenging activity .

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-N10770

5'-Geranyl-5,7,2',4'-tetrahydroxyflavone	Structural Classification Flavonoids Gramineae Source classification Plants Other Flavonoids Saccharum officinarum	Others
5'-Geranyl-5,7,2',4'-tetrahydroxyflavone, a phenolic compound, presents strong oxygen radical absorbance capacity (ORAC), DPPH radical-scavenging capacity, ABTS radical-scavenging capacity, ferric reducing antioxidant power (FRAP) and nitrite-scavenging capacity. 5'-Geranyl-5,7,2',4'-tetrahydroxyflavone has the potential for natural antioxidant research .

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-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-N11997

Feralolide	Structural Classification Liliaceae Source classification Coumarins Phenols Polyphenols Aloe vera (L.) Burm. f. Phenylpropanoids Plants	Cholinesterase (ChE)
Feralolide is a dihydroisocoumarin isolated from the methanolic extract of aloe vera resin. Feralolide is also a dual inhibitor of AChE and BuChE, with IC₅₀s of 55 μg/mL and 52 μg/mL respectively. Feralolide has antioxidant activity and inhibits 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2, 2′-azinobis-3-ethylbenzothiazoline-6-sulfonic acid (ABTS). Feralolide could be used in research into cognitive disorders such as Alzheimer's disease, potentially restoring and enhancing memory .

HY-N9283

1,2-Diacetoxy-4,7,8-trihydroxy-3-(4-hydroxyphenyl)dibenzofuran	Microorganisms Source classification Phenols Polyphenols	Reactive Oxygen Species
1,2-Diacetoxy-4,7,8-trihydroxy-3-(4-hydroxyphenyl)dibenzofuran, isolated from the edible mushroom Sarcodon leucopus, has antioxidant effects in the DPPH scavenging assay with the IC₅₀ of 28 μM, inhibits malondialdehyde (MDA) with the IC₅₀ of 71 μM, and inhibits α-glucosidase with the IC₅₀ of 6.22 μM .

HY-121153

Altenusin Alutenusin	Structural Classification Microorganisms Classification of Application Fields Ketones, Aldehydes, Acids Source classification Other Diseases Phenols Polyphenols Disease Research Fields	FXR
Altenusin shows markedly DPPH radical scavenging activities.

HY-N9814

Shanciol B	Pholidota imbricata Hook. Classification of Application Fields Orchidaceae Source classification Phenols Polyphenols Plants Disease Research Fields Inflammation/Immunology	NO Synthase
Shanciol B, isolated from the ethyl acetate extract of the air-dried whole plant of Pholidota imbricate Hook, inhibits nitric oxide (NO) production and 1,1-diphenyl-2-picrylhydrazil (DPPH) radical scavenging activity . Shanciol B is a microsomal prostaglandin E synthase-1 (mPGES-1) inhibitor with anti-inflammatory activity .

HY-W018643A

(E)-Ferulic acid methyl ester Methyl (E)-ferulate	Structural Classification Monophenols Ginkgoaceae Classification of Application Fields Simple Phenylpropanols Source classification Other Diseases Phenols Phenylpropanoids Plants Ginkgo biloba Disease Research Fields	COX
(E)-Ferulic acid methyl ester (Methyl (E)-ferulate) exhibits strong DPPH and ABTS ⁺ radical scavenging activities .

HY-N3424

Kelampayoside A	Structural Classification Cinnamomum cassia (L.) D. Don Ketones, Aldehydes, Acids Source classification Plants Lauraceae	Others
Kelampayoside A, a natural compound, shows an EC₅₀ value of 35.7 µg/mL in DPPH assay (antioxidative activity) .

HY-N6043

Hydroxytyrosol acetate	Classification of Application Fields Canarium album (Lour.) Rauesch. Source classification Phenols Polyphenols Plants Burseraceae Disease Research Fields Inflammation/Immunology	Others
Hydroxytyrosol acetate is found in the olive oil with an antioxidant activity. Hydroxytyrosol acetate had a weaker DPPH radical scavenging activity than hydroxytyrosol .

HY-133965

Cinchonain IIa	Structural Classification Smilacaceae Source classification Phenols Polyphenols Plants Smilax sebeana Miq.	Others
Cinchonain IIa is an antioxidant agent with EC₅₀s of 6.8 μM and 26.5 μM for DPPH and PMS-NADH .

HY-N6672

Caulophylline B	Alkaloids Classification of Application Fields Caulophyllum robustum Maxim. Source classification Phenols Polyphenols Plants Berberidaceae Disease Research Fields Inflammation/Immunology	Others
Caulophylline B is a fluorenone alkaloid isolated from the roots of Caulophyllum robustum Maxim, affords a low scavenging effect against DPPH radical .

HY-N7931

Regaloside A 1 Publications Verification	Structural Classification Monophenols Liliaceae Classification of Application Fields Simple Phenylpropanols Source classification Phenols Phenylpropanoids Lilium regale Wilson Plants Inflammation/Immunology Disease Research Fields	NO Synthase NF-κB
Regaloside A, a phenylpropanoid, shows significant DPPH radical scavenging activity of 58.0% at 160 ppm. Regaloside A has anti-inflammatory activity .

Cat. No.	Product Name	Chemical Structure

HY-113121S

Vanillylmandelic acid-d3
Vanillylmandelic acid-d₃ is the deuterium labeled Vanillylmandelic acid. Vanillylmandelic acid is the endproduct of epinephrine and norepinephrine metabolism. Vanillylmandelic acid can be used as an indication of the disorder in neurotransmitter metabolism as well. Vanillylmandelic acid has antioxidant activity towards DPPH radical with an IC50 value of 33 μM[1].

HY-113121S1

Vanillylmandelic acid-d1
Vanillylmandelic acid-d is the deuterium labeled Vanillylmandelic acid. Vanillylmandelic acid is the endproduct of epinephrine and norepinephrine metabolism. Vanillylmandelic acid can be used as an indication of the disorder in neurotransmitter metabolism as well. Vanillylmandelic acid has antioxidant activity towards DPPH radical with an IC50 value of 33 μM[1].

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.

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