19 Results for "

DPPH (Standard)

" in MedChemExpress (MCE) Product Catalog:
Products (19)

19 Results for "DPPH (Standard)" in MCE Product Catalog:

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-N0828R
CAS No.: 537-42-8
Pterostilbene (Standard) is the analytical standard of Pterostilbene. This product is intended for research and analytical applications. 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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Cat. No.: HY-W540232
CAS No.: 2284-20-0
Synonyms: 4-Methylphenyl ITC
4-Methoxyphenyl isothiocyanate (4-Methylphenyl ITC) is an antioxidant, with a IC50 value of 1.25 mM for scavenging DPPH radicals. ORAC testing indicates its antioxidant capacity as 11.7 mM TE (indicating that the antioxidant efficacy of this compound is equivalent to 11.7 mmol of Trolox (HY-101445, a standard antioxidant) under the same conditions), and it extends the oxidation process by approximately 9180 seconds in the Briggs–Rauscher reaction. Additionally, 4-Methoxyphenyl isothiocyanate exhibits moderate cholinesterase inhibitory activity, with an inhibition rate of 30.4% against acetylcholinesterase (AChE) and 17.9% against butyrylcholinesterase (BChE). 4-Methoxyphenyl isothiocyanate holds potential for research in the fields of antioxidation and neurological disorders .
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Cat. No.: HY-113121R
CAS No.: 55-10-7
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 .
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Cat. No.: HY-N1430R
CAS No.: 29700-22-9
Synonyms: trans-Oxyresveratrol (Standard)
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 .
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Cat. No.: HY-N2907R
CAS No.: 479-20-9
Atranorin (Standard) is the analytical standard of Atranorin (HY-N2907). This product is intended for research and analytical applications. Atranorin is a secondary metabolite of lichens and AKT inhibitor. Atranorin possesses multiple activities such as antibacterial, anti-inflammatory, antioxidant, anti-glycation, analgesic, and anti-tumor effects. Atranorin has IC50 values for scavenging DPPH and ABTS free radicals of 117 μM and less than 10 μM, respectively. Additionally, Atranorin also exhibits effects in promoting wound healing. Atranorin can be used in the research of various diseases, including myelodysplastic syndromes, tumors, and inflammatory conditions .
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Cat. No.: HY-N6037R
CAS No.: 2798-20-1
Gardenin B (Standard) is the analytical standard of Gardenin B (HY-N6037). This product is intended for research and analytical applications. Gardenin B is a flavonoid isolated from Gardenia jasminoides. Gardenin B is a methoxyflavone compound and an inhibitor of USP7, ODC (IC50: 6.24 μg/mL), and Cathepsin D (IC50: 5.61 μg/mL). Gardenin B exhibits antioxidant and antitumor activities. Gardenin B shows IC50 values of 8.87 and 10.59 μg/mL for DPPH and NO scavenging, respectively, and also possesses ferric ion reducing ability. Additionally, Gardenin B can inhibit tumor cell proliferation, induce cell cycle arrest and apoptosis. Gardenin B can be used in cancer research .
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Cat. No.: HY-W040045R
CAS No.: 18466-51-8
Synonyms: Pelargonidin-3-O-glucoside chloride (Standard)
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.
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Cat. No.: HY-N0448R
CAS No.: 23513-15-7
10-Gingerol (Standard) is the analytical standard of 10-Gingerol (HY-N0448). This product is intended for research and analytical applications. 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 is promising for research of ulcerative colitis .
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Cat. No.: HY-N1417R
CAS No.: 533-31-3
Sesamol (Standard) is the analytical standard of Sesamol. This product is intended for research and analytical applications. 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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Cat. No.: HY-W010594R
CAS No.: 1003-04-9
Tetrahydrothiophen-3-one (Standard) is the analytical standard of Tetrahydrothiophen-3-one (HY-W010594). This product is intended for research and analytical applications. Tetrahydrothiophen-3-one is an endogenous metabolite . Tetrahydrothiophen-3-one scavenges DPPH free radicals. Tetrahydrothiophen-3-one can be used in studies related to Candida infections .
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Cat. No.: HY-P1934AR
CAS No.: 3705-26-8
Gallic acid (hydrate) (Standard) is the analytical standard of Gallic acid (hydrate). This product is intended for research and analytical applications. 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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Cat. No.: HY-107208R
CAS No.: 29106-51-2
Synonyms: (-)-Procyanidin B4 (Standard)
Procyanidol B4 (Standard) is the analytical standard of Procyanidol B4 (HY-107208). This product is intended for research and analytical applications. 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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Cat. No.: HY-N6829R
CAS No.: 1245-15-4
Synonyms: Quercetin-​3,​3',​4',​7-​tetramethylether (Standard)
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.
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Cat. No.: HY-W101673R
CAS No.: 2416-95-7
Research Areas:  

Others

Dipropofol (Standard) is the analytical standard of Dipropofol. This product is intended for research and analytical applications. Dipropofol is a dimeric derivative of Propofol (HY-B0649) with antioxidant and antibacterial activities. Dipropofol terminates free radical chain reactions, scavenges DPPH free radicals and inhibits lipid peroxidation. Dipropofol protects cells from death induced by glutamate, Aβ(25-35) and buthionine sulfoximine, and increases the survival rate of mice exposed to oxygen. Dipropofol selectively activates tonic GABAA currents, hyperpolarizes resting membrane potential, reduces action potential firing, and alleviates the severity of seizures induced by Kainic acid. Dipropofol can be used in the research of Gram-positive bacterial infections, Alzheimer's disease, cerebral ischemia-related neuronal injury, oxygen toxicity and temporal lobe epilepsy .
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Cat. No.: HY-B0377R
CAS No.: 76824-35-6
Synonyms: MK-208 (Standard)
Famotidine (Standard) (MK-208 (Standard)) is the analytical standard of Famotidine (HY-B0377). This product is intended for research and analytical applications. 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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Cat. No.: HY-N1353R
CAS No.: 569-92-6
Rhamnocitrin (Standard) is the analytical standard of Rhamnocitrin. This product is intended for research and analytical applications. 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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Cat. No.: HY-W002773R
CAS No.: 6702-50-7
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 .
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Cat. No.: HY-Y0075R
CAS No.: 66-99-9
2-Naphthaldehyde (Standard) is the analytical standard of 2-Naphthaldehyde (HY-Y0075). This product is intended for research and analytical applications. 2-Naphthaldehyde is a naphthalene-based bi-aromatic aldehyde compound. 2-Naphthaldehyde scavenges DPPH and ABTS + free radicals, and exerts reductive effects by donating hydrogen atoms to terminate free radical chain reactions. 2-Naphthaldehyde inhibits the growth and proliferation of colon cancer cells. 2-Naphthaldehyde serves as a substrate for NAD +-dependent salicylaldehyde dehydrogenase from Pseudomonas strain C6 and is catalytically oxidized to 2-naphthoic acid. 2-Naphthaldehyde acts as a precursor material for the chemical synthesis of antioxidant Schiff bases .
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