350 Results for "

DPPH

" in MedChemExpress (MCE) Product Catalog:
Products (350)

350 Results for "DPPH" 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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12
12 Cited Publications
Cat. No.: HY-N0828
CAS No.: 537-42-8
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 .
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7
7 Cited Publications
Cat. No.: HY-B0377
CAS No.: 76824-35-6
Synonyms: MK-208
Famotidine (MK-208) is an orally active and highly selective histamine H2 receptor antagonist. It inhibits gastric acid secretion by blocking the Gs signaling pathway, and regulates intracellular cAMP and ERK pathways. Famotidine inhibits TLR3-mediated inflammatory pathways, and reduces the expression of various inflammatory mediators and interferon-related genes. Famotidine scavenges DPPH and nitric oxide free radicals, alleviates oxidative stress damage in gastric tissue, inhibits proMMP-9, improves vascular endothelial permeability, and restores the normal physiological functions of neutrophils and eosinophils. Famotidine crosses intestinal epithelial cells via facilitated diffusion and passive diffusion, blocks paracellular cation transport, and increases intestinal transepithelial electrical resistance. Famotidine reduces serum levels of transaminases and alkaline phosphatase, exerts analgesic effects and gastric protective effects simultaneously. Famotidine can be used in studies related to COVID-19, liver injury and acute gastric ulcer .
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4
4 Cited Publications
Cat. No.: HY-N1353
CAS No.: 569-92-6
Rhamnocitrin is an anti-inflammatory and antioxidant agent that targets STIM-1, NFATc3 and MAPK pathways and can scavenge DPPH (IC50=28.38 mM). Rhamnocitrin selectively inhibits oxidative stress and inflammatory responses in vascular endothelial cells and neurons. Rhamnocitrin up-regulates miR-185 to inhibit STIM-1-mediated store-operated calcium entry (SOCE), thereby blocking NFATc3 nuclear translocation and downstream inflammatory factor expression, while inducing heme oxygenase HO-1 expression and regulating the ERK/p38 MAPK pathway, inhibiting antioxidant and pro-inflammatory cytokines (such as IL-6, IL-8) and adhesion molecules (such as ICAM-1, VCAM-1). Rhamnocitrin can be used in the study of endothelial-related inflammatory diseases (such as sepsis, acute lung injury, atherosclerosis) and neuroprotection (such as oxidative damage of PC12 cells) .
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4
4 Cited Publications
Cat. No.: HY-N0448
CAS No.: 23513-15-7
10-Gingerol is an AMPK agonist, which is found in the ginger oleoresin from fresh rhizome with anti-inflammatory, antioxidant and anti-proliferative activities. 10-Gingerol suppresses neointimal hyperplasia and inhibits vascular smooth muscle cell proliferation. 10-Gingerol exhibits substantial scavenging activities with an IC50 value of 10.47 μM against DPPH radical, an IC50 value of 1.68 μM against superoxide radical and an IC50 value of 1.35 μM against hydroxyl radical. 10-Gingerol inhibits the proliferation of MDA-MB-231 tumor cell line with an IC50 of 12.1 μM. 10-Gingerol suppresses the proliferation, migration, invasion, and induced apoptosis through targeting the PI3K/Akt signaling pathway in MDA-MB-231/IR cells. 10-Gingerol can be used in research on various common cancers such as ovarian cancer and colon cancer, as well as colitis and neurodegenerative diseases .
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3
3 Cited Publications
Cat. No.: HY-N1430
CAS No.: 29700-22-9
Synonyms: trans-Oxyresveratrol
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 .
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2
2 Cited Publications
Cat. No.: HY-113121
CAS No.: 55-10-7
Purity:  99.67%
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 .
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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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2
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-14550
CAS No.: 898563-00-3
Purity:  99.88%
TP-10 is a selective PDE10A inhibitor with an IC50 value of 0.8 nM. TP-10 shows an antioxidant activity with IC50s of 31.72 and 16.04 μg/ml for DPPH and CUPRAC, respectively. TP-10 can be used for the research of neuropathy .
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2
2 Cited Publications
Cat. No.: HY-N2443
CAS No.: 22153-44-2
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 .
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2
2 Cited Publications
Cat. No.: HY-W040045
CAS No.: 18466-51-8
Synonyms: Pelargonidin-3-O-glucoside chloride
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 .
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1
1 Cited Publications
Cat. No.: HY-107208
CAS No.: 29106-51-2
Purity:  99.89%
Synonyms: (-)-Procyanidin B4
Procyanidol B4 ((-)-Procyanidin B4) is an orally active polyphenol found in Q.gilva. Procyanidol B4 exerts antioxidant activity by scavenging DPPH (HY-112053) (IC50: 12.15 μM) and Nitro blue tetrazolium chloride (NBT) (HY-15925) (IC50: 8.67 μM). Procyanidol B4 exhibits anti-inflammatory activity by inhibiting the expression of COX-2 and IL-1β and iNOS .
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1
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
1 Cited Publications
Cat. No.: HY-N9397
CAS No.: 96862-01-0
Quercetin 3-O-(6''-O-malonyl)-β-D-glucoside is a flavonol glycoside. Quercetin 3-O-(6''-O-malonyl)-β-D-glucoside possesses antioxidant activity .
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1
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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1
1 Cited Publications
Cat. No.: HY-N11077
CAS No.: 89886-30-6
Synonyms: 4,5-di-O-CQA
4,5-Di-O-caffeoylquinic acid (4,5-di-O-CQA) is a natural product with multiple activities including anti-inflammatory, antioxidant, and antibacterial properties. 4,5-Di-O-caffeoylquinic acid induces intracellular Ca 2+ influx, and inhibits hypoxia-induced COX-2 expression and cell migration via the TRPV1-mediated pathway. 4,5-Di-O-caffeoylquinic acid scavenges DPPH free radicals, inhibits Cu 2+-mediated LDL oxidation, and reduces the production of TBARS. 4,5-Di-O-caffeoylquinic acid promotes intracellular ATP production, inhibits Aβ42 aggregation and β-sheet conversion, and protects neuroblastoma cells. 4,5-Di-O-caffeoylquinic acid inhibits the growth of Bacillus shigae. 4,5-Di-O-caffeoylquinic acid can be used in studies related to atherosclerosis, Alzheimer's disease, and bacterial infections .
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1
1 Cited Publications
Cat. No.: HY-N6937
CAS No.: 158932-33-3
Synonyms: (R,R)-SDG; (R,R)-LGM2605
(R,R)-Secoisolariciresinol diglucoside ((R,R)-SDG) is an isomer of Secoisolariciresinol diglucoside (HY-105008). (R,R)-Secoisolariciresinol diglucoside scavenges hydroxyl radicals, peroxyl radicals, and DPPH radicals. (R,R)-Secoisolariciresinol diglucoside reduces γ-ray-induced strand breaks in calf thymus DNA . (R,R)-Secoisolariciresinol diglucoside can be used in studies of oxidant-dependent inflammatory tissue injury .
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1
1 Cited Publications
Cat. No.: HY-Y1885
CAS No.: 7722-88-5
Tetrasodium pyrophosphate is a water-soluble inorganic salt commonly used as a buffering agent, emulsifier, and sequestrant. Tetrasodium pyrophosphate is an antimicrobial agent that can reduce microbial colonization. Tetrasodium pyrophosphate blocks IPP translocation, enhances astaxanthin, phenol, flavonoid, and H2O2 levels, activates PAL and DPPH scavenging activity. Tetrasodium pyrophosphate can be used for the research of alleviating symptoms post COVID-19 .
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1
1 Cited Publications
Cat. No.: HY-N6829
CAS No.: 1245-15-4
Synonyms: Quercetin-​3,​3',​4',​7-​tetramethylether
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 .
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