98 Results for "

DPPH radical-scavenging activity

" in MedChemExpress (MCE) Product Catalog:
Products (98)

98 Results for "DPPH radical-scavenging activity" in MCE Product Catalog:

51
51 Publications Verification
Cat. No.: HY-112053
CAS No.: 1898-66-4
Purity:  98.77%
Synonyms: 2,2-Diphenyl-1-picrylhydrazyl
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 .
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2 Cited Publications
Cat. No.: HY-N1417
CAS No.: 533-31-3
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 .
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2
2 Cited Publications
Cat. No.: HY-N7931
CAS No.: 114420-66-5
Regaloside A, a phenylpropanoid, shows significant DPPH radical scavenging activity of 58.0% at 160 ppm. Regaloside A has anti-inflammatory activity .
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1 Cited Publications
Cat. No.: HY-P1934A
CAS No.: 3705-26-8
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 .
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1 Cited Publications
Cat. No.: HY-N4111
CAS No.: 521-45-9
Wushanicaritin exhibits significant antioxidant activity (IC50=35.3 μM) in DPPH radical scavenging activity tests. Antitumor effects and anti-inflammatory property .
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Cat. No.: HY-N0521
CAS No.: 3371-27-5
(-)-Gallocatechin, an epimer of (-)-Epigallocatechin (EGC) (HY-N0225), is contained in various tea products. (-)-Gallocatechin demonstrates antioxidant activity in vitro, including inhibition of LDL oxidation and DPPH radical scavenging .
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Cat. No.: HY-D0168
CAS No.: 504-15-4
Synonyms: 3,5-Dihydroxytoluene
Orcinol (3,5-Dihydroxytoluene) is an organic compound used in biological dyeing and proteomics research. Orcinol inhibits melanogenesis in B16F10 cells by upregulating the MAPK/ERK signaling pathway, and suppresses the expression of MITF, tyrosinase (TYR), TRP1, and DCT. Orcinol exhibits certain DPPH radical scavenging activity. In addition, Orcinol can alter nitrogen balance in animals. Orcinol holds promise for research in cancer and metabolic diseases .
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Cat. No.: HY-N7005
CAS No.: 55804-74-5
Clitorin is an orally active flavonoid compound that can be isolated from Carica papaya. Clitorin is an inhibitor of EGFR (IC50: 89.58 nM) and aromatase (IC50: 77.41 nM). Clitorin has antioxidant and anti-tumor activities. In the DPPH and ABTS radical scavenging assays, Clitorin has IC50 values of 91.96 ppm and 250.45 ppm, respectively. In addition, Clitorin can regulate lipogenesis and fatty acid oxidation and can be used in the research of non-alcoholic fatty liver disease .
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Cat. No.: HY-W019885A
CAS No.: 7758-29-4
Synonyms: Sodium triphosphate pentabasic, 98%
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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Cat. No.: HY-127170
CAS No.: 939-19-5
Purity:  99.30%
3-Hydroxycoumarin is an inhibitor of tyrosinase and lipoxygenase with an IC50 for recombinant human tyrosinase (rHT) of 26 μM, and a Ki 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 .
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Cat. No.: HY-N1750
CAS No.: 5631-68-5
3-(2,4-Dihydroxyphenyl) propanoic acid (DPPacid) is a competitive Tyrosinase inhibitor. It exhibits an IC50 value of 3.02 μM against mushroom tyrosinase with L-tyrosine as the substrate, an IC50 value of 62 μM with DL-DOPA as the substrate, and a Ki value of 11.5 μM. 3-(2,4-Dihydroxyphenyl) propanoic acid shows no DPPH radical scavenging activity. It can be used in studies related to ultraviolet B (UVB)-induced hyperpigmentation .
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Cat. No.: HY-119979
CAS No.: 501-26-8
Purity:  98.02%
Synonyms: Cardanol C15:1
Cardanol monoene (Cardanol C15:1) is a phenolic compound which can be found in cashew nut shell liquid. Cardanol monoene can inhibit cancer cells proliferation, migration, cause S phase arrest, induce apoptosis, ROS production and mitochondrial depolarization. Cardanol monoene downregulates MMP-2, MMP-9, cyclinA1 expression, regulates CDK2, p53, Bax, cytochrome c, cleaved caspase-3, cleaved PARP, Apaf-1 expression and Bax/Bcl-2 ratio. Cardanol monoene shows weak DPPH radical scavenging activity and AChE inhibition activity. Cardanol monoene is lethal to Artemia salina nauplii. Cardanol monoene. Cardanol monoene can be used for the research of cancer, infection and inflamation .
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Cat. No.: HY-W001542
CAS No.: 3416-18-0
5-Hydroxyoxindole is a structural analog of uric acid for its antioxidant. 5-Hydroxyoxindole has DPPH radical scavenging activities and lipid peroxidation-inhibitory activities. 5-Hydroxyoxindole is a product of partial metabolism of tryptophan involving conversion in the gut lumen of tryptophan to indole through the action of bacterial tryptophanase and tryptophan synthase. 5-Hydroxyoxindole is one of the main molecules responsible for the neurological symptoms of hepatic encephalopathy in rats. 5-Hydroxyoxindole can be used for the research of oxidative stress-mediated disorders .
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Cat. No.: HY-112053R
CAS No.: 1898-66-4
Synonyms: 2,2-Diphenyl-1-picrylhydrazyl (Standard)
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 .
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Cat. No.: HY-N11173A
CAS No.: 618-67-7
trans-Melilotoside is a coumarin precursor and that can be isolated from Melilotus neapolitan. trans-Melilotoside exhibits antiparasitic and DPPH radical-scavenging activity. trans-Melilotoside can be used for the research of human african trypanosomiasis, chagas’ disease, malaria [1] [3].
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Cat. No.: HY-N3349
CAS No.: 14464-90-5
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 .
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Cat. No.: HY-N3985
CAS No.: 548-89-0
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 .
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Cat. No.: HY-N8194
CAS No.: 40039-49-4
Synonyms: Syringetin 3-O-β-D-glucoside
Syringetin-3-O-glucosid (Syringetin 3-O-β-D-glucoside), a flavonol glycoside, shows relatively weak DPPH and ABTS radical scavenging activity .
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Cat. No.: HY-N3141
CAS No.: 2955-23-9
Synonyms: (-)-Olivile; Vladinol C
Olivil ((-)-Olivile) is a lignan that has weak DPPH radical-scavenging activity (EC50: 176 μM) .
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Cat. No.: HY-W013677
CAS No.: 456-22-4
4-Fluorobenzoic acid is a drug intermediate that can be used to synthesize a series of hydrazone derivatives with antituberculosis activity and Schiff bases with DPPH radical scavenging activity .
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