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DPPH (Standard)

" in MedChemExpress (MCE) Product Catalog:

12

Inhibitors & Agonists

1

Peptides

10

Natural
Products

Cat. No. Product Name Target Research Areas Chemical Structure
  • HY-113121R
    Vanillylmandelic acid (Standard)

    		Drug Metabolite Reference Standards Endogenous Metabolite Cardiovascular Disease
    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 .
    Vanillylmandelic acid (Standard)
  • HY-112053R
    DPPH (Standard)

    2,2-Diphenyl-1-picrylhydrazyl (Standard)

    		 Reactive Oxygen Species (ROS) Reference Standards Metabolic Disease
    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 .
    DPPH (Standard)
  • HY-N1417R
    Sesamol (Standard)

    		Reference Standards Apoptosis Cancer
    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 .
    Sesamol (Standard)
  • HY-N0828R
    Pterostilbene (Standard)

    		Reference Standards Autophagy Inflammation/Immunology Cancer
    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 .
    Pterostilbene (Standard)
  • HY-P1934AR
    Cyclo(L-Phe-L-Pro) (Standard)

    		Reference Standards Fungal Bacterial IFNAR Reactive Oxygen Species (ROS) Infection Inflammation/Immunology Cancer
    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 .
    Cyclo(L-Phe-L-Pro) (Standard)
  • 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 .
    Oxyresveratrol (Standard)
  • HY-107208R
    Procyanidol B4 (Standard)

    (-)-Procyanidin B4 (Standard)

    		 Reference Standards Reactive Oxygen Species (ROS) COX Interleukin Related NO Synthase Inflammation/Immunology
    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 .
    Procyanidol B4 (Standard)
  • HY-N2907R
    Atranorin (Standard)

    		Wnt Reference Standards Ras Endogenous Metabolite Bacterial Fungal PD-1/PD-L1 Tim3 Akt AP-1 STAT Infection Neurological Disease Inflammation/Immunology Cancer
    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 .
    Atranorin (Standard)
  • HY-W041301R
    (±)-Dihydroactinidiolide (Standard)

    		Reference Standards Cholinesterase (ChE) Bacterial Infection Neurological Disease Cancer
    (±)-Dihydroactinidiolide (Standard) is the analytical standard of (±)-Dihydroactinidiolide (HY-W041301). This product is intended for research and analytical applications. (±)-Dihydroactinidiolide is the exo-isomer of Dihydroactinidiolide (HY-107805). Dihydroactinidiolide, existing in plant leaves and fruits, is a potent plant growth inhibitor, a regulator of gene expression and is responsible for photo acclimation in Arabidopsis. Dihydroactinidiolide has antioxidant activity, antibacterial activity, anticancer activity and neuroprotective effect. Dihydroactinidiolide is also an inhibitor of AChE (IC50 = 34.03 nM) and has scavenging activities for DPPH and (.NO). Dihydroactinidiolide is present in plant leaves and fruits and is a potent plant growth inhibitor, regulator of gene expression, and responsible for light adaptation in Arabidopsis .
    (±)-Dihydroactinidiolide (Standard)
  • HY-N6037R
    Gardenin B (Standard)

    		Reference Standards Apoptosis Ornithine decarboxylase (ODC) Reactive Oxygen Species (ROS) Cathepsin Deubiquitinase Caspase Inflammation/Immunology Cancer
    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 .
    Gardenin B (Standard)
  • HY-W540232
    4-Methoxyphenyl isothiocyanate

    4-Methylphenyl ITC

    		 Cholinesterase (ChE) Neurological Disease
    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 .
    4-Methoxyphenyl isothiocyanate
  • HY-N1353R
    Rhamnocitrin (Standard)

    		Reference Standards Others p38 MAPK Cardiovascular Disease Inflammation/Immunology
    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) .
    Rhamnocitrin (Standard)

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