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Results for "

DPPH,

" in MedChemExpress (MCE) Product Catalog:

By Targets:	Aldose Reductase (4) Amylases (2) Apoptosis (4) Autophagy (4) Bacterial (3) 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 (1) Interleukin Related (1) Isotope-Labeled Compounds (1) Keap1-Nrf2 (1) Lipoxygenase (1) 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 (12) SARS-CoV (1) TNF Receptor (1) TrxR (1) Tyrosinase (4) Xanthine Oxidase (1) α-synuclein (1)
By Research Areas:	Cancer (26) Cardiovascular Disease (8) Infection (9) Inflammation/Immunology (47) Metabolic Disease (15) Neurological Disease (17)
Click Chemistry:	Azide (1)

118

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 15 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-N6043

Hydroxytyrosol acetate	Others	Inflammation/Immunology
Hydroxytyrosol acetate is found in the olive oil with an antioxidant activity. Hydroxytyrosol acetate had a weaker DPPH radical scavenging activity than hydroxytyrosol .

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-121153

Altenusin Alutenusin	FXR	Others
Altenusin shows markedly DPPH radical scavenging activities.

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-W018643A

(E)-Ferulic acid methyl ester Methyl (E)-ferulate	COX	Others
(E)-Ferulic acid methyl ester (Methyl (E)-ferulate) exhibits strong DPPH and ABTS ⁺ radical scavenging activities .

HY-N3424

Kelampayoside A	Others	Inflammation/Immunology
Kelampayoside A, a natural compound, shows an EC₅₀ value of 35.7 µg/mL in DPPH assay (antioxidative activity) .

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-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-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-133965

Cinchonain IIa	Others	Inflammation/Immunology
Cinchonain IIa is an antioxidant agent with EC₅₀s of 6.8 μM and 26.5 μM for DPPH and PMS-NADH .

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-N6672

Caulophylline B	Others	Inflammation/Immunology
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	NO Synthase NF-κB	Inflammation/Immunology
Regaloside A, a phenylpropanoid, shows significant DPPH radical scavenging activity of 58.0% at 160 ppm. Regaloside A has anti-inflammatory activity .

HY-N11655

Antioxidant agent-10	Others	Others
Antioxidant agent-10 (Compound 3) is an antioxidant agent that exhibits moderate DPPH scavenging activity with an EC₅₀ of 33.2 μg/mL .

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-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-N7904

Laricitrin 3-O-glucoside	Others	Others
Laricitrin 3-O-glucoside is an antioxidant agent. Laricitrin 3-O-glucoside correlates significantly with DPPH assay and CUPRAC assay .

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-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-N8169

10-O-Trans-p-methoxycinnamoylcatalpol	Others	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-N9447

Norbergenin 1 Publications Verification	Reactive Oxygen Species	Neurological Disease
Norbergenin, the O-demethyl derivative of bergenin, shows moderate antioxidant activity (IC₅₀ 13 μM in DPPH radical scavenging; 32 μM in superoxide anion scavenging) .

HY-157123

Tyrosinase-IN-18	Tyrosinase	Others
Tyrosinase-IN-18 (compound 6) is a potent tyrosinase inhibitor. Tyrosinase-IN-18 has strong antioxidant activities against ROS, ABTS+, and DPPH radicals .

HY-N4111

Wushanicaritin 1 Publications Verification	Others	Inflammation/Immunology Cancer
Wushanicaritin exhibits significant antioxidant activity (IC₅₀=35.3 μM) in DPPH radical scavenging activity tests. Antitumor effects and anti-inflammatory property .

HY-N11469

Cyclobisdemethoxycurcumin	Others	Others
Cyclobisdemethoxycurcumin is an antioxidant agent with IC₅₀s of ~250 μM and 15-20 μM in DPPH radical scavenging assay and 2-DR oxidation assay, respectively .

HY-N13128

Icaritin-3-O-rhamnoside	Others	Others
Icaritin-3-O-rhamnoside (compound 20) is a flavonoid compound that exhibits DPPH radical scavenging activity (IC50=227.9 μM) .

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-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-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-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-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-N1205

Spathulenol	Others	Cancer
Spathulenol is isolated from Aristolochia yunnanensis, and has antioxidant, anti-inflammatory, antiproliferative and antimycobacterial activities. Spathulenol shows a high antioxidant activity with an IC₅₀ of 85.60 μg/mL in the DPPH system ^[1].

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-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-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-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-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-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-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-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-N4046

Hexacosyl (E)-ferulate n-Hexacosyl trans-ferulate	Others	Others
Hexacosyl (E)-ferulate (n-Hexacosyl trans-ferulate) is an antioxidant agent that displays significant antioxidant activity in the DPPH (HY-112053) assay with the RC₅₀ (50% reduction concentration) of 0.0976 mg/mL .

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-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-N12871

Floramanoside D	Aldose Reductase	Others
Floramanoside D is a flavonol glycoside. Floramanoside D inhibits aldose reductase (IC₅₀ is 2.2 μM), scavenges the 2,2-diphenyl-1-picrylhydrazyl (DPPH) (SC₅₀ is 12.5 μM) .

HY-W416228

1-O-Caffeoyl-β-D-glucopyranose	Others	Others
1-O-Caffeoyl-β-D-glucopyranose, a phenylpropanoid compound derived from Illicium majus, exhibits significant antioxidant activity and can scavenge DPPH radicals in vitro, with an IC₅₀ value of 37.7 μM .

HY-N1417

Sesamol 1 Publications Verification	Apoptosis	Cancer
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-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-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) .

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-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-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-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-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-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-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-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-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 .

HY-N11655

Antioxidant agent-10	Structural Classification Flavonoids Flavones Leguminosae Source classification Plants Cajanus cajan (L.) Millsp.	Others
Antioxidant agent-10 (Compound 3) is an antioxidant agent that exhibits moderate DPPH scavenging activity with an EC₅₀ of 33.2 μg/mL .

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-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-N7904

Laricitrin 3-O-glucoside	Structural Classification Flavonoids Flavones Pinaceae Cedrus atlantica (Endlicher) Manetti ex Carriere Source classification Plants	Others
Laricitrin 3-O-glucoside is an antioxidant agent. Laricitrin 3-O-glucoside correlates significantly with DPPH assay and CUPRAC assay .

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-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-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-N9447

Norbergenin 1 Publications Verification	Structural Classification Natural Products other families Source classification Phenols Polyphenols Plants	Reactive Oxygen Species
Norbergenin, the O-demethyl derivative of bergenin, shows moderate antioxidant activity (IC₅₀ 13 μM in DPPH radical scavenging; 32 μM in superoxide anion scavenging) .

HY-N4111

Wushanicaritin 1 Publications Verification	Flavonols Structural Classification Flavonoids Classification of Application Fields Source classification Phenols Polyphenols Epimedium wushanense Ying Plants Berberidaceae Inflammation/Immunology Disease Research Fields	Others
Wushanicaritin exhibits significant antioxidant activity (IC₅₀=35.3 μM) in DPPH radical scavenging activity tests. Antitumor effects and anti-inflammatory property .

HY-N11469

Cyclobisdemethoxycurcumin	Structural Classification Monophenols Source classification Phenols Plants Curcuma longa Zingiberaceae	Others
Cyclobisdemethoxycurcumin is an antioxidant agent with IC₅₀s of ~250 μM and 15-20 μM in DPPH radical scavenging assay and 2-DR oxidation assay, respectively .

HY-N13128

Icaritin-3-O-rhamnoside	Structural Classification Flavonoids Flavones Source classification Epimedium wushanense Ying Plants Berberidaceae	Others
Icaritin-3-O-rhamnoside (compound 20) is a flavonoid compound that exhibits DPPH radical scavenging activity (IC50=227.9 μM) .

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-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-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-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-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-N1205

Spathulenol	Structural Classification other families Classification of Application Fields Terpenoids Sesquiterpenes Source classification Aristolochia yunnanensis Plants Aristolochiaceae Disease Research Fields Cancer	Others
Spathulenol is isolated from Aristolochia yunnanensis, and has antioxidant, anti-inflammatory, antiproliferative and antimycobacterial activities. Spathulenol shows a high antioxidant activity with an IC₅₀ of 85.60 μg/mL in the DPPH system ^[1].

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-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-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-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-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-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-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-N4046

Hexacosyl (E)-ferulate n-Hexacosyl trans-ferulate	Structural Classification Monophenols Source classification Dendranthema morifolium (Ramat.) Tzvel. Phenols Plants Compositae	Others
Hexacosyl (E)-ferulate (n-Hexacosyl trans-ferulate) is an antioxidant agent that displays significant antioxidant activity in the DPPH (HY-112053) assay with the RC₅₀ (50% reduction concentration) of 0.0976 mg/mL .

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-N12871

Floramanoside D	Malvaceae Structural Classification Flavonoids Flavones Source classification Abelmoschus manihot (Linn.) Medicus Plants	Aldose Reductase
Floramanoside D is a flavonol glycoside. Floramanoside D inhibits aldose reductase (IC₅₀ is 2.2 μM), scavenges the 2,2-diphenyl-1-picrylhydrazyl (DPPH) (SC₅₀ is 12.5 μM) .

HY-W416228

1-O-Caffeoyl-β-D-glucopyranose	Illicium majus Hook. f. & Thomson Structural Classification Source classification Phenols Polyphenols Plants Schisandraceae	Others
1-O-Caffeoyl-β-D-glucopyranose, a phenylpropanoid compound derived from Illicium majus, exhibits significant antioxidant activity and can scavenge DPPH radicals in vitro, with an IC₅₀ value of 37.7 μM .

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-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-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-N8254

Haginin A	Structural Classification Anthocyans Flavonoids Leguminosae Source classification Lespedeza cyrtobotrya Miq. Plants	Others
Haginin A (compound 3）can be isolated from the EtOAc fraction of Lespedeza cyrtobotrya. Haginin A has radical scavenging activity with IC₅₀ *values of 9.0 μM and 37.7 μM in the ABTS system and DPPH* system, respectively .**

HY-W714006

Cochliodinol	Structural Classification Human Gut Microbiota Metabolites Microorganisms Antibiotics Source classification Endogenous metabolite Other Antibiotics	Others
Cochliodinol (compound 1) is a metabolite derived from the Apis mellifera ligustica. Cochliodinol has strong free radical scavenging activity of 2, 2-diphenyl-1-picrohydrazine (DPPH) (IC₅₀=3.06 μg/mL) .

HY-N12443

Antioxidant agent-18	Structural Classification Ginkgoaceae Source classification Phenols Polyphenols Plants Ginkgo biloba	Others
Antioxidant agent-18 (compound 5) is a flavonol glycoside with antioxidant activity isolated from Ginkgo biloba. Antioxidant agent-18 scavenges DPPH radicals (IC₅₀: 15.8 μM) and reduces cytochrome c (IC₅₀: 14.7 μM).

HY-N13181

2-(3',4'-Dihydroxyphenyl)-1,3-benzodioxole-5-aldehyde	Structural Classification Source classification Phenols Polyphenols Sargentodoxa cuneata (Oliv.) Rehd. et Wils. Plants Sargentodoxaceae	Others
2-(3',4'-Dihydroxyphenyl)-1,3-benzodioxole-5-aldehyde is a macrocyclic glycoside compound derived from Sargentodoxa cuneata, exhibiting significant antioxidant activity with a DPPH IC₅₀ value of 2.9 μM .

HY-N1994

Swertianine	Structural Classification Flavonoids Xanthones Flavones Source classification Swertia bimaculata (Sieb. et Zucc.) Hook. f. et Thoms. ex C. B. Clark Gentianaceae Phenols Plants	Others
Swertianine is a hydroxyexanthone that can be isolated from Swertia decussata. Swertianine has antioxidant activity by inhibiting lipid peroxidation, scavenging DPPH and superoxide free radicals. Swertianine also inhibits γ-ray induced DNA damage of pBR322 with protective effect .

HY-N13182

Taxoquinone	Structural Classification Cupressaceae Terpenoids Source classification Diterpenoids Plants Metasequoia glyptostroboides Hu & W. C. Cheng	Others
Taxoquinone is an antioxidant derived from Metasequoia glyptostroboides and belongs to the diterpenoid class of compounds. At a concentration of 150 μg/mL, Taxoquinone exhibits a maximum inhibition of DPPH radicals of 81.29%, demonstrating superior antioxidant activity compared to Ascorbic acid and α-tocopherol at the same concentration .

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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