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Results for "

DPPH+free+radical

" in MedChemExpress (MCE) Product Catalog:

By Targets:	Akt (1) Amylases (1) Antibiotic (1) Apoptosis (5) Autophagy (2) Bacterial (5) Bcl-2 Family (1) Biochemical Assay Reagents (4) Caspase (1) Cholinesterase (ChE) (3) COX (5) Cytochrome P450 (1) Drug Derivative (3) EGFR (2) Elastase (1) Endogenous Metabolite (2) Environmental Pollutants (1) Estrogen Receptor/ERR (1) Fungal (3) Glycosidase (1) HDAC (3) HIV (2) HIV Integrase (1) HIV Protease (1) HSP (1) HSV (2) Influenza Virus (1) Interleukin Related (4) JNK (2) LDLR (1) Lipase (1) Lipoxygenase (1) Microphthalmia Associated Transcription Factor (MITF) (1) Mitochondrial Metabolism (1) MMP (2) NO Synthase (7) p38 MAPK (2) Parasite (2) PERK (2) Phosphodiesterase (PDE) (2) PKA (1) Raf (1) Reactive Oxygen Species (ROS) (18) Reference Standards (6) SARS-CoV (2) TNF Receptor (3) Toll-like Receptor (TLR) (1) TRP Channel (1) Tyrosinase (8) Xanthine Oxidase (1)
By Research Areas:	Cancer (13) Cardiovascular Disease (2) Infection (13) Inflammation/Immunology (27) Metabolic Disease (12) Neurological Disease (9)

By Targets:

Akt (1)

Amylases (1)

Antibiotic (1)

Apoptosis (5)

Autophagy (2)

Bacterial (5)

Bcl-2 Family (1)

Biochemical Assay Reagents (4)

Caspase (1)

Cholinesterase (ChE) (3)

COX (5)

Cytochrome P450 (1)

Drug Derivative (3)

EGFR (2)

Elastase (1)

Endogenous Metabolite (2)

Environmental Pollutants (1)

Estrogen Receptor/ERR (1)

Fungal (3)

Glycosidase (1)

HDAC (3)

HIV (2)

HIV Integrase (1)

HIV Protease (1)

HSP (1)

HSV (2)

Influenza Virus (1)

Interleukin Related (4)

JNK (2)

LDLR (1)

Lipase (1)

Lipoxygenase (1)

Microphthalmia Associated Transcription Factor (MITF) (1)

Mitochondrial Metabolism (1)

MMP (2)

NO Synthase (7)

p38 MAPK (2)

Parasite (2)

PERK (2)

Phosphodiesterase (PDE) (2)

PKA (1)

Raf (1)

Reactive Oxygen Species (ROS) (18)

Reference Standards (6)

SARS-CoV (2)

TNF Receptor (3)

Toll-like Receptor (TLR) (1)

TRP Channel (1)

Tyrosinase (8)

Xanthine Oxidase (1)

By Research Areas:

Cancer (13)

Cardiovascular Disease (2)

Infection (13)

Inflammation/Immunology (27)

Metabolic Disease (12)

Neurological Disease (9)

Inhibitors & Agonists

Biochemical Assay Reagents

Natural
Products

Cat. No.	Product Name	Target	Research Areas	Chemical Structure

HY-N1430

Oxyresveratrol 3 Publications Verification 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-N1312

Sinapaldehyde	COX Bacterial Reactive Oxygen Species (ROS) Interleukin Related NO Synthase PERK JNK	Infection Inflammation/Immunology
Sinapaldehyde is a methoxyphenol and a selective COX-2 inhibitor (IC₅₀: 47.8 µM) that can be extracted from various plants. Sinapaldehyde has antibacterial, anti-inflammatory, and antioxidant activities. Sinapaldehyde can scavenge *DPPH* free radicals (IC₅₀: 172 μM). Sinapaldehyde is active against both Gram-negative and Gram-positive bacteria .

HY-N0627

Kaempferol-7-O-β-D-glucopyranoside	LDLR	Others
Kaempferol-7-O-β-D-glucopyranoside is a flavonoid glycoside. Kaempferol-7-O-β-D-glucopyranoside exists in the root bark of Cudrania tricuspidata. Kaempferol-7-O-β-D-glucopyranoside inhibits Cu ²⁺-induced lipid peroxidation of low-density lipoprotein. Kaempferol-7-O-β-D-glucopyranoside possesses antioxidant activity and scavenges DPPH free radicals .

HY-W040045

Callistephin chloride 1 Publications Verification Pelargonidin-3-O-glucoside chloride	Reactive Oxygen Species (ROS) COX NO Synthase p38 MAPK TNF Receptor Apoptosis	Neurological Disease Metabolic Disease Inflammation/Immunology Cancer
Callistephin (Pelargonidin 3-O-glucoside) chloride is an anthocyanin. Callistephin chloride regulates the expression of inflammatory (reducing iNOS/TNF-α/COX-2) and apoptosis-related proteins by inhibiting p38 phosphorylation, and enhances the protective effect of Isoflurane (HY-A0134) on microglial cell damage. Callistephin chloride significantly reduces ROS levels, eliminates *DPPH* free radicals, protects retinal pigment epithelial cells, and inhibits lipid peroxidation. Callistephin chloride can alleviate glutamate excitotoxicity, reduce neuronal apoptosis, and protect cerebellar granule neurons. Callistephin chloride can inhibit the proliferation and metastasis of breast cancer cells by inducing apoptosis .

HY-W019885A

Sodium tripolyphosphate (STPP), 98% Sodium triphosphate pentabasic, 98%	Environmental Pollutants Biochemical Assay Reagents	Others
Sodium tripolyphosphate (STPP), 98% is an inorganic, non-toxic polyphosphate crosslinker, inducer and enhancer. Sodium tripolyphosphate (STPP), 98% induces the formation of unique needle-like microcrystals in sodium alginate-chitosan composite films. Sodium tripolyphosphate (STPP), 98% enhances the *DPPH* free radical scavenging activity of sodium alginate-chitosan composite films .

HY-N2443

Tribuloside 1 Publications Verification	Phosphodiesterase (PDE) Bacterial PKA Tyrosinase TRP Channel Microphthalmia Associated Transcription Factor (MITF) Interleukin Related	Infection Metabolic Disease Inflammation/Immunology
Tribuloside is a flavonoid and PDE4 inhibitor (IC₅₀: 6 μM). Tribuloside exhibits antibacterial and antioxidant activities, capable of scavenging *DPPH* free radicals. Tribuloside also promotes melanogenesis. Tribuloside can be used in the research of hypopigmentary diseases, sun protection, and inflammatory diseases such as acute lung injury .

HY-127170

3-Hydroxycoumarin	Lipoxygenase Tyrosinase	Metabolic Disease Inflammation/Immunology
3-Hydroxycoumarin is an inhibitor of tyrosinase and lipoxygenase with an IC₅₀ for recombinant human tyrosinase (rHT) of 26 μM, and a K_i of 3.39 μM; its IC₅₀ for LOX is 9.5 μM. 3-Hydroxycoumarin has DPPH free radical scavenging activity (IC₅₀ = 31.2 μM). 3-Hydroxycoumarin has photoprotective effects on sea urchin zygotes and embryos .

HY-N7627

Regaloside C	Estrogen Receptor/ERR Toll-like Receptor (TLR) Akt MMP HSP	Inflammation/Immunology
Regaloside C is an anti-inflammatory agent and antioxidant that scavenges ABTS and *DPPH* free radicals. Regaloside C targets multiple molecules including TNF-α, MMP-2, ERα, AKT1, TLR4 and HSP90-α. Regaloside C is applicable to research related to inflammatory diseases .

HY-N6829

Retusin Quercetin-3,3',4',7-tetramethylether	Tyrosinase Fungal SARS-CoV Apoptosis Reactive Oxygen Species (ROS)	Infection Neurological Disease Metabolic Disease Inflammation/Immunology
Retusin (Quercetin-3,3',4',7-tetramethylether) is a tyrosinase inhibitor, with IC₅₀ values of 50.9 μM and 51.8 μM against mushroom and intracellular tyrosinase, respectively. Retusin also acts as a free radical scavenger, melanogenesis inhibitor, anti-apoptosis agent, neuroprotective agent, antiemetic, antifungal agent, and antiviral agent. Retusin scavenges ABTS• ⁺ and DPPH• free radicals. Retusin can be used in studies related to hyperpigmentation, vomiting, Aspergillus niger infection, and COVID-19 infection .

HY-124496

Piperitenone	Mitochondrial Metabolism Reactive Oxygen Species (ROS)	Others
Piperitenone is a terpenoid, and exhibits antioxidant activity. Piperitenone scavenges DPPH free radicals with an IC₅₀ of 22.7 μg/mL, and inhibits the peroxidation of linoleic acid .

HY-168993

BRCA2-IN-2	Reactive Oxygen Species (ROS)	Inflammation/Immunology Cancer
BRCA2-IN-2 (Compound 3i) has a strong binding affinity to the BRCA2 protein. BRCA2-IN-2 can inhibit the proliferation of breast cancer cells and scavenge *DPPH* free radicals. BRCA2-IN-2 has anti-tumor and antioxidant activities .

HY-N0241

Rhodionin	Cholinesterase (ChE) Lipase Bacterial Cytochrome P450	Infection Metabolic Disease
Rhodionin is an orally active, multifunctional antivirulence and cytoprotective agent that targets and inhibits Lipase, sortase A (SrtA), CYP2D6 (IC₅₀=0.761 μM), AChE (IC₅₀=2.43-57.5 μM), and *DPPH* free radicals (IC₅₀=19.49 μM). Rhodionin is isolable from the roots of Rhodiola crenulata. Rhodionin reduces postprandial serum triglyceride levels in mice by inhibiting lipase activity. Rhodionin also binds directly to SrtA to inhibit its transpeptidase activity, thereby reducing the fibrinogen adhesion and surface protein A levels of MRSA, effectively inhibiting biofilm formation and protecting against MRSA-induced cell damage. Rhodionin improves the survival rate of infected mice without affecting MRSA growth, and finds wide application in studies related to hyperlipidemia, exogenous obesity, and pneumonia induced by methicillin-resistant Staphylococcus aureus (MRSA) .

HY-N8219

Isoarundinin II	Reactive Oxygen Species (ROS)	Inflammation/Immunology
Isoarundinin II is a bibenzyl compound found in the pseudobulbs of Pleione grandiflora (Rolfe) Rolfe. Isoarundinin II scavenges *DPPH* free radicals .

HY-W002773

Methyl isovanillate	Endogenous Metabolite	Others
Methyl isovanillate is a secondary metabolite isolated from Vitex agnus-castus. Methyl isovanillate does not exhibit significant activity in the DPPH free radical* scavenging experiment* .

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-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-N7648

Atherosperminine Atherospermine	Parasite Phosphodiesterase (PDE)	Infection
Atherosperminine (Atherospermine) is a phosphodiesterase inhibitor. Atherosperminine inhibits growth of chloroquine-resistant Plasmodium falciparum. Atherosperminine scavenges *DPPH* free radicals, exhibits ferric reducing power, and chelates metal ions. Atherosperminine can be used for the research of malaria .

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-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-N1312R

Sinapaldehyde (Standard)	Reference Standards COX Bacterial Reactive Oxygen Species (ROS) Interleukin Related NO Synthase PERK JNK	Infection Inflammation/Immunology
Sinapaldehyde is a methoxyphenol and a selective COX-2 inhibitor (IC50: 47.8 µM) that can be extracted from various plants. Sinapaldehyde has antibacterial, anti-inflammatory, and antioxidant activities. Sinapaldehyde can scavenge DPPH free radicals (IC50: 172 μM). Sinapaldehyde is active against both Gram-negative and Gram-positive bacteria .

HY-N1430R

Oxyresveratrol (Standard) trans-Oxyresveratrol (Standard)	Reference Standards Tyrosinase HSV Autophagy	Others
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-W012092

Ethyl 3,4,5-trimethoxybenzoate	Tyrosinase Reactive Oxygen Species (ROS)	Metabolic Disease Inflammation/Immunology
Ethyl 3,4,5-trimethoxybenzoate is a melanogenesis inhibitor. Ethyl 3,4,5-trimethoxybenzoate does not directly target tyrosinase activity, but inhibits melanin synthesis in a dose-dependent manner by downregulating α-MSH (HY-P0252)-induced tyrosinase protein expression and scavenging ROS. Ethyl 3,4,5-trimethoxybenzoate scavenges *DPPH* free radicals. Ethyl 3,4,5-trimethoxybenzoate can be used in the research of hyperpigmentation .

HY-W104752

5-(Pyridin-4-yl)-1,3,4-oxadiazole-2-thiol	Bacterial Fungal	Infection Neurological Disease Metabolic Disease Inflammation/Immunology Cancer
5-(Pyridin-4-yl)-1,3,4-oxadiazole-2-thiol (Compound 3n) is an antimicrobial and antioxidant agent, that inhibits Escherichia coli and Staphylococcus epidermidis, with MIC of 8 and 4 μg/mL. 5-(Pyridin-4-yl)-1,3,4-oxadiazole-2-thiol exhibits antioxidant activity with IC₅₀ of 17.47 μM using DPPH free radical-scavenging method .

HY-W040045R

Callistephin chloride (Standard) Pelargonidin-3-O-glucoside chloride (Standard)	Reference Standards Reactive Oxygen Species (ROS) COX NO Synthase p38 MAPK Apoptosis TNF Receptor	Neurological Disease Inflammation/Immunology Cancer
Callistephin (Pelargonidin 3-O-glucoside) chloride (Standard) is the analytical standard of Callistephin chloride (HY-W040045). This product is intended for research and analytical applications. Callistephin chloride is an anthocyanin. Callistephin chloride regulates the expression of inflammatory (reducing iNOS/TNF-α/COX-2) and apoptosis-related proteins by inhibiting p38 phosphorylation, and enhances the protective effect of Isoflurane (HY-A0134) on microglial cell damage. Callistephin chloride significantly reduces ROS levels, eliminates *DPPH* free radicals, protects retinal pigment epithelial cells, and inhibits lipid peroxidation. Callistephin chloride can alleviate glutamate excitotoxicity, reduce neuronal apoptosis, and protect cerebellar granule neurons. Callistephin chloride can inhibit the proliferation and metastasis of breast cancer cells by inducing apoptosis.

HY-N16606

2,4-Dihydroxy-6-methoxy-3,5-diprenylacetophenone	Drug Derivative NO Synthase	Inflammation/Immunology
2,4-Dihydroxy-6-methoxy-3,5-diprenylacetophenone (Compound 8) is an Acetophenone (HY-Y0989) derivative found in Acronychia oligophlebia. 2,4-Dihydroxy-6-methoxy-3,5-diprenylacetophenone exhibits anti-inflammatory and antioxidant activities. 2,4-Dihydroxy-6-methoxy-3,5-diprenylacetophenone can inhibit LPS (HY-D1056)-induced NO production (IC₅₀ = 34.5 μM) and scavenge DPPH free radical (SC₅₀ = 0.15 mM). 2,4-Dihydroxy-6-methoxy-3,5-diprenylacetophenone can be used for the research of inflammation .

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-N7518

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

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-N8012

Multinoside A	COX NO Synthase	Others
Multinoside A (compound 6) is an antioxidant with DPPH free radical scavenging activity (IC₅₀=54.3 μg/mL). Multinoside A can also downregulate COX-2 expression (IC₅₀=9.6 μg/mL) and inhibit NO production (IC₅₀=43.9 μg/mL) .

HY-N15578

Actinidioionoside	Others	Others
Actinidioionoside (Compound 2) is a megastigmane glucoside compound found in Borago officinalis L. Actinidioionoside has DPPH free radical scavenging activity (IC₅₀: 41.3 μM). Actinidioionoside has no significant cytotoxicity against A549 human lung cancer cells (IC₅₀ > 100 μM). Actinidioionoside can be used in antioxidant studies .

HY-W747504

TAN-420E Dihydroherbimycin A	Antibiotic Reactive Oxygen Species (ROS)	Infection Cancer
TAN-420E (Dihydroherbimycin A) is an antibiotic, that can be isolated from the fermentation product of Streptomyces hygroscopicus. TAN-420E exhibits cytotoxicity in cancer cells P-388 and KB. TAN-420E scavenges DPPH free radicals with an IC₅₀ of 1.3 μM .

HY-161866

EGFR-IN-118	EGFR	Cancer
EGFR-IN-118 (Compound 4a) is an inhibitor for the tyrosine kinase EGFR. EGFR-IN-118 demonstrates anti-cancer property, inhibiting the proliferation of MCF-7 and PC3 with IC₅₀ of 2.53 and 3.25 µg/ml. EGFR-IN-118 exhibits antioxidant efficacy, inhibiting the DPPH free radicals with IC₅₀ of 10.04 µg/ml .

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-N15536

N-trans-Feruloyltyramine 4′-O-β-D-glucopyranoside	Reactive Oxygen Species (ROS)	Cardiovascular Disease Neurological Disease
N-trans-Feruloyltyramine 4′-O-β-D-glucopyranoside is a phenolic amide glycoside compound found in Suaeda japonica. N-trans-Feruloyltyramine 4′-O-β-D-glucopyranoside exhibits antioxidant activity, capable of effectively scavenging DPPH free radicals and reducing the production of ROS induced by H₂O₂ in cells, thus protecting cells from oxidative stress damage. N-trans-Feruloyltyramine 4′-O-β-D-glucopyranoside is promising for research of cardiovascular diseases and neurodegenerative diseases .

HY-149517

EGFR/BRAFV600E-IN-2	EGFR Raf Caspase Bcl-2 Family Apoptosis	Inflammation/Immunology Cancer
EGFR/BRAFV600E-IN-2 (compound 3g) is a potential multi-target inhibitor of EGFR, BRAF ^V600E, and EGFR ^T790M, and an inducer of apoptosis. EGFR/BRAFV600E-IN-2 can activate caspase-3, 8, and Bax, and downregulate the anti-apoptotic protein Bcl2, inducing apoptosis. EGFR/BRAF V600E-IN-2 also has antioxidant activity and DPPH free radical scavenging potency .

HY-N6829R

Retusin (Standard) Quercetin-3,3',4',7-tetramethylether (Standard)	Reference Standards Tyrosinase Fungal SARS-CoV Apoptosis Reactive Oxygen Species (ROS)	Infection Neurological Disease Metabolic Disease Inflammation/Immunology
Retusin (Quercetin-3,3',4',7-tetramethylether) (Standard) is the analytical standard of Retusin. This product is intended for research and analytical applications. Retusin is a tyrosinase inhibitor, with IC₅₀ values of 50.9 μM and 51.8 μM against mushroom and intracellular tyrosinase, respectively. Retusin also acts as a free radical scavenger, melanogenesis inhibitor, anti-apoptosis agent, neuroprotective agent, antiemetic, antifungal agent, and antiviral agent. Retusin scavenges ABTS• ⁺ and DPPH• free radicals. Retusin can be used in studies related to hyperpigmentation, vomiting, Aspergillus niger infection, and COVID-19 infection.

HY-170561

AChE/BuChE-IN-6	Cholinesterase (ChE)	Neurological Disease
AChE/BuChE-IN-6 (Compound 11f) is an inhibitor of AChE and BuChE, with IC₅₀ values of 1.24 and 1.85 μg/mL, respectively. AChE/BuChE-IN-6 also exhibits strong *DPPH* free radical scavenging activity (IC₅₀ = 3.15 μg/mL). In vivo toxicity studies indicate that AChE/BuChE-IN-6 is safe, showing no significant differences in blood and biochemical markers compared to the control group after long-term administration, and no abnormalities were observed in liver and kidney tissues. AChE/BuChE-IN-6 holds promise for research into Alzheimer's disease .

HY-N17673

Avenanthramide 1c	Biochemical Assay Reagents	Others
Avenanthramide 1c is a free radical scavenger and antioxidant. Avenanthramide 1c scavenges *DPPH* free radicals. Avenanthramide 1c inhibits azo-initiated linoleic acid peroxidation. Avenanthramide 1c exerts antioxidant effects. Avenanthramide 1c exhibits an antagonistic interaction with Avenanthramide 2f in the *DPPH* free radical scavenging system .

HY-W450115

USF 2550A	Reactive Oxygen Species (ROS)	Inflammation/Immunology
USF 2550A is a class of fungus-derived 2-pyran compound with *DPPH* free radical scavenging activity. USF 2550A binds to DPPH free radicals in organic solvents to form adducts, thereby achieving free radical scavenging; in acetate buffer, the formed adducts undergo degradation, and the degradation products can continuously scavenge free radicals. USF 2550A can be used in antioxidant-related research .

HY-N15191

Pinoquercetin	Reactive Oxygen Species (ROS)	Inflammation/Immunology
Pinoquercetin is a ¹³C-methylated flavonol and antioxidant. Pinoquercetin scavenges *DPPH* free radicals. Pinoquercetin can be used for research of oxidative damage .

HY-N17504

N-Formylnornuciferin	Others	Others
N-Formylnornuciferin is an N-acylaporphine alkaloid isolated from the stems of Tinospora crispa. N-Formylnornuciferin exhibits no scavenging activity against *DPPH* free radicals .

HY-N17551

Odoratumone A	Drug Derivative	Others
Odoratumone A (Compound 1/11) is a homoisoflavonoid identified in the rhizomes of Polygonatum odoratum (Mill.) Druce. Odoratumone A exhibits *DPPH* free radical scavenging activity (IC₅₀ = 32.8 μg/mL) and exerts antioxidant properties. Odoratumone A is applicable for antioxidant research .

HY-N17774

2,3,4,6-Tetragalloylglucose	Reactive Oxygen Species (ROS)	Others
2,3,4,6-Tetragalloylglucose is a hydrolyzable tannin with antioxidant activity, exhibiting DPPH free radical scavenging activity (IC₅₀=11.35 μM). 2,3,4,6-Tetragalloylglucose can be isolated from the endocarp of Juglans regia (walnut).

HY-N17846

Dimethyl lithospermate	Reactive Oxygen Species (ROS)	Inflammation/Immunology
Dimethyl lithospermate is an antioxidant. Dimethyl lithospermate scavenges *DPPH* free radicals and inhibits free radical generation. Dimethyl lithospermate also protects hepatocytes from tert-butyl hydroperoxide (t-BHP)-induced oxidative damage. Dimethyl lithospermate can be used in oxidative damage-related research .

HY-N19850

Mammea B/BD	Biochemical Assay Reagents	Cancer
Mammea B/BD is an anticancer antioxidant that can be isolated from the seeds of Mammea americana. Mammea B/BD exhibits antiproliferative effects on colon cancer cells. Mammea B/BD scavenges *DPPH* free radicals. Mammea B/BD can be used in colon cancer research .

HY-N19852

Mammea E/BA	Biochemical Assay Reagents	Cancer
Mammea E/BA is a prenylated coumarin anticancer agent that can be isolated from the seeds of Mammea americana. Mammea E/BA scavenges *DPPH* free radicals. Mammea E/BA induces cytotoxicity in colon cancer cells. Mammea E/BA can be used for the research of colon cancer .

HY-N17378

Camelliquercetiside B	Others	Others
Camelliquercetiside B is a natural product. Camelliquercetiside B can be isolated from the leaves of Camellia sinensis. Camelliquercetiside B inhibits alcohol dehydrogenase (Alcohol dehydrogenase), with an IC₅₀ of 13.7 μM against yeast alcohol dehydrogenase. Camelliquercetiside B exhibits scavenging activity against DPPH free radicals .

HY-W002773R

Methyl isovanillate (Standard)	Endogenous Metabolite Reference Standards	Others
Methyl isovanillate (Standard) is the analytical standard of Methyl isovanillate (HY-W002773). This product is intended for research and analytical applications. Methyl isovanillate is a secondary metabolite isolated from Vitex agnus-castus. Methyl isovanillate does not exhibit significant activity in the DPPH free radical scavenging experiment .

HY-N11962A

2,3,9,10-Tetrahydroxyberberine bromide	Cholinesterase (ChE)	Neurological Disease
2,3,9,10-Tetrahydroxyberberine bromide is an acetylcholinesterase AChE inhibitor (IC₅₀=7.8 μM). 2,3,9,10-Tetrahydroxyberberine bromide exhibits DPPH free radical scavenging activity (IC₅₀=43 μM) and is applicable to research related to Alzheimer's disease .

HY-N17763

Styraxlignolide G	Others	Inflammation/Immunology
Styraxlignolide G is a furanofuran-type lignan compound that can be isolated from the stem bark of Styrax japonica. Styraxlignolide G exhibits very weak DPPH free radical scavenging activity, while its hydrolyzed aglycone molecule possesses antioxidant activity (IC₅₀=186.7 μM) and is involved in antioxidant-related regulation in the body. Styraxlignolide G can be used in the study of inflammatory diseases.

Cat. No.	Product Name	Type

HY-W019885A

Sodium tripolyphosphate (STPP), 98% Sodium triphosphate pentabasic, 98%	Biochemical Assay Reagents
Sodium tripolyphosphate (STPP), 98% is an inorganic, non-toxic polyphosphate crosslinker, inducer and enhancer. Sodium tripolyphosphate (STPP), 98% induces the formation of unique needle-like microcrystals in sodium alginate-chitosan composite films. Sodium tripolyphosphate (STPP), 98% enhances the *DPPH* free radical scavenging activity of sodium alginate-chitosan composite films .

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