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Results for "

DPPH radical

" in MedChemExpress (MCE) Product Catalog:

By Targets:	Aldose Reductase (1) Amylases (2) Aryl Hydrocarbon Receptor (1) Autophagy (2) Bacterial (1) Cholinesterase (ChE) (1) Drug Metabolite (1) Elastase (1) Endogenous Metabolite (4) Ferroptosis (1) Fungal (2) FXR (1) Glucosidase (2) HIV (1) HSV (1) IFNAR (1) Influenza Virus (1) Interleukin Related (1) Isotope-Labeled Compounds (1) Lipoxygenase (2) Microtubule/Tubulin (1) NF-κB (1) NO Synthase (2) Nucleoside Antimetabolite/Analog (1) Parasite (1) Reactive Oxygen Species (8) TNF Receptor (1) TrxR (1) Tyrosinase (3)
By Research Areas:	Cancer (15) Cardiovascular Disease (5) Infection (7) Inflammation/Immunology (34) Metabolic Disease (10) Neurological Disease (4)
Click Chemistry:	Azide (1)

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Isotope-Labeled Compounds

Click Chemistry

Cat. No.	Product Name	Target	Research Areas	Chemical Structure

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-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-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 .

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

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-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-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-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-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-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-N10770

5'-Geranyl-5,7,2',4'-tetrahydroxyflavone	Others	Metabolic Disease
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-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-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-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-N10295

Flavipin	Aryl Hydrocarbon Receptor	Inflammation/Immunology
Flavipin is an aryl hydrocarbon receptor (Ahr) agonist that induces the expression of Ahr downstream genes in mouse CD4 ⁺ T cells and CD11b ⁺ macrophages. Flavipin inhibits the stabilizing function of Arid5a on Il23a 3′UTR, a newly identified target mRNA . Flavipin exhibits the DPPH free radical scavenging ability with IC₅₀ value of 7.2 μM, and has potent α-glucosidase inhibition with IC₅₀ value of 33.8 μM .

HY-149390

TrxR1-IN-1	TrxR	Cancer
TrxR1-IN-1 (Compound 5j) is a TrxR1 inhibitor (IC₅₀: 8.8 μM). TrxR1-IN-1 has anticancer activity, with IC₅₀s of MCF-7 (1.5 μM), HeLa (1.7 μM), BGC-823 (2.4 μM), SW-480 (2.8 μM), A549 (2.1 μM). TrxR1-IN-1 has antioxidant activity, and scavenges DPPH radical .

HY-146172

Antioxidant agent-3	Reactive Oxygen Species	Inflammation/Immunology Cancer
Antioxidant agent-3 (Compound 14q), an potent antioxidant, displays potent DPPH radicals scavenging activity and ABTS ⁺ scavenging activity with IC₅₀s of 26.58 and 30.31 μM, respectively. Antioxidant agent-3 (Compound 14q) increases reactive oxygen species (ROS), superoxide dismutase (SOD) and glutathione (GSH), and reduced lactate dehydrogenase (LDH) in H₂O₂-treated HepG2 cells .

HY-121153

Altenusin

Alutenusin
FXR Others

Altenusin shows markedly DPPH radical scavenging activities.

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

HY-N9814

Shanciol B	NO Synthase	Inflammation/Immunology
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-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 .

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-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-112053

DPPH Maximum Cited Publications 11 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-W018643A

(E)-Ferulic acid methyl ester

Methyl (E)-ferulate
Others Others

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

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

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

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-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-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-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-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	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-N9368

Luteolin-7-O-α-L-arabinopyranosyl (1→6)-β-D-glucopyranoside	Others	Others
Luteolin-7-O-α-L-arabinopyranosyl (1→6)-β-D-glucopyranoside is a flavonoid with antiradical activity .

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-113121

Vanillylmandelic acid 1 Publications Verification	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-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-N1417

Sesamol 1 Publications Verification
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-N8254

Haginin A	Others	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-157124

Tyrosinase-IN-19	Tyrosinase	Metabolic Disease
Tyrosinase-IN-19 (compound 9) is a competitive tyrosinase inhibitor. Tyrosinase-IN-19 has strong antioxidant activities against ROS, ABTS+, and DPPH radicals. Tyrosinase-IN-19 suppresses tyrosinase expression in a dose-dependent manner .

HY-N1430

Oxyresveratrol trans-Oxyresveratrol	Tyrosinase HSV Autophagy	Others
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-113121S1

Vanillylmandelic acid-d1	Isotope-Labeled Compounds Endogenous Metabolite	Cardiovascular Disease
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	Target	Research Area

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 .

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 .

Cat. No.	Product Name	Category	Target	Chemical Structure

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-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-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-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-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	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-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-W001542

5-Hydroxyoxindole	Structural Classification Neurological Disease Classification of Application Fields Source classification Metabolic Disease Haldina cordifolia (Roxb.) Ridsd. 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-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-N10927

2,11,12-Trihydroxy-7,20-epoxy-8,11,13-abietatriene	Structural Classification Terpenoids Labiatae Source classification Diterpenoids Plants Stevia rebaudiana (Bertoni) Bertoni	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-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-N10295

Flavipin	Microorganisms Classification of Application Fields Ketones, Aldehydes, Acids Source classification Phenols Polyphenols Disease Research Fields Inflammation/Immunology	Aryl Hydrocarbon Receptor
Flavipin is an aryl hydrocarbon receptor (Ahr) agonist that induces the expression of Ahr downstream genes in mouse CD4 ⁺ T cells and CD11b ⁺ macrophages. Flavipin inhibits the stabilizing function of Arid5a on Il23a 3′UTR, a newly identified target mRNA . Flavipin exhibits the DPPH free radical scavenging ability with IC₅₀ value of 7.2 μM, and has potent α-glucosidase inhibition with IC₅₀ value of 33.8 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-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-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-W018643A

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

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-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-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-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	Monophenols Liliaceae Classification of Application Fields Simple Phenylpropanols Source classification Phenols Phenylpropanoids Plants Lilium regale Wilson Disease Research Fields Inflammation/Immunology	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-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	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	Flavonols Flavonoids Classification of Application Fields Source classification Phenols Polyphenols Epimedium wushanense Ying Plants Berberidaceae Disease Research Fields Inflammation/Immunology	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-N9368

Luteolin-7-O-α-L-arabinopyranosyl (1→6)-β-D-glucopyranoside	Flavonoids Classification of Application Fields Flavones Salix raddeana Laksch. Source classification Other Diseases Phenols Polyphenols Plants Disease Research Fields Salicaceae	Others
Luteolin-7-O-α-L-arabinopyranosyl (1→6)-β-D-glucopyranoside is a flavonoid with antiradical activity .

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-113121

Vanillylmandelic acid 1 Publications Verification	Cardiovascular Disease Structural Classification Monophenols Microorganisms Classification of Application Fields Ketones, Aldehydes, Acids Source classification Phenols Endogenous metabolite Disease Research Fields	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-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-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-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-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-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-113121R

Vanillylmandelic acid (Standard)	Structural Classification Monophenols Microorganisms Ketones, Aldehydes, Acids Phenols Endogenous metabolite	Drug Metabolite Endogenous Metabolite
Vanillylmandelic acid (Standard) is the analytical standard of Vanillylmandelic acid. This product is intended for research and analytical applications. 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-120315

Nyssoside	Infection Natural Products other families Classification of Application Fields Source classification Plants Disease Research Fields	Bacterial
Nyssoside, a ellagic acid derivative, has significant antioxidant activity and shows antibacterial activity against different pathogenic bacteria .

HY-N5130

Effusol	Juncus effusus Linn. Juncaceae Source classification Phenols Polyphenols Plants	Others
Effusol, a phenolic constituent from Juncus effuses, exhibits potent scavenging activity for DPPH and ABTS radicals, with IC₅₀ values of 79 μM and 2.73 μM, respectively. Effusol rescues CA1 LTP attenuated by corticosterone, defending the hippocampal function against stress-induced cognitive decline .

HY-N0539

Calceolarioside B	Structural Classification Classification of Application Fields Simple Phenylpropanols Akebia quinata (Houttuyn) Decaisne Lardizabalaceae Source classification Phenols Polyphenols Phenylpropanoids Plants Disease Research Fields Cancer	Aldose Reductase
Calceolarioside B is a natural product isolated from Akebia quinata leaves. Calceolarioside B exhibits significant inhibitory activity against rat lens aldose reductase (RLAR) with an IC₅₀ of 23.99 μM. Calceolarioside B displays inhibitory effect on DPPH radical scavenging activity with an IC₅₀ of 94.60 μM .

HY-N7648

Atherosperminine Atherospermine	Infection Alkaloids Classification of Application Fields Source classification Fissistigma glaucescens Plants Annonaceae Disease Research Fields	Parasite
Atherosperminine（Atherospermine）is a nature occurring alkaloid, has antiplasmodial activities in vitro, with an IC₅₀ of 5.80 μM. Atherosperminine is a good reductant with the ability to chelate metals. Atherosperminine has scavenging activity towards the free radical *DPPH, with an IC₅₀* of 29.56 µg/mL. Atherosperminine exerts a non-specific relaxant effect on the trachealis .

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-N0828

Pterostilbene 5 Publications Verification	Structural Classification Monophenols other families Stilbenes Classification of Application Fields Source classification Phenols Plants Inflammation/Immunology Disease Research Fields	Autophagy
Pterostilbene is a stilbenoid isolated from blueberries and Pterocarpus marsupium . Shows anti-oxidant, anti-inflammatory, anti-carcinogenic, anti-diabetic and anti-obesity properties . Pterostilbene blocks ROS production , also exhibits inhibitory activity against various free radicals such as DPPH, ABTS, hydroxyl, superoxide and hydrogen peroxide .

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].

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