Free Radical Scavengers
Free radical scavengers are bioactive substances that eliminate reactive free radicals. Free radicals with unpaired electrons easily damage lipids, proteins and DNA, causing oxidative stress and cell aging.
Free radical scavengers neutralize radicals by donating electrons or hydrogen atoms to form stable inert compounds. Their scavenging capacity is measured by in vitro assays including DPPH and ABTS tests.
Common natural scavengers are polyphenols, flavonoids, vitamin C and vitamin E. They are widely studied for food preservation, cosmetic anti-oxidation and treatments for oxidative damage-related diseases.
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Free Radical Scavengers Related Products (379)
Related Products (379)
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Crisdesalazine
0 ImagesSynonyms: AAD-2004Crisdesalazine (AAD-2004) is a microsomal prostaglandin E2 synthase-1 (mPGES-1) inhibitor. Crisdesalazine acts as a potent free radical scavenger that directly neutralizes reactive oxygen species (ROS) including hydrogen peroxide, exerting neuroprotective effects against apoptosis and axonal damage. Crisdesalazine inhibits PGE2 production, mediates inflammatory responses, and promotes the conversion of macrophages from the pro-inflammatory M1 phenotype to the anti-inflammatory M2 phenotype. Crisdesalazine is applicable to neuroprotection research in multiple sclerosis and spinal cord injury.
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Homovanillyl alcohol
0 ImagesHomovanillyl alcohol is a biological metabolite of Hydroxytyrosol, and belongs to the class of phenolic organic compounds. Homovanillyl alcohol alleviates cellular oxidative stress and inflammatory responses by scavenging free radicals, inhibiting the phosphorylation of the p38 and JNK MAP kinase pathways, as well as suppressing NF-κB-driven transcription and nuclear translocation. It can be used in studies related to cardiovascular diseases and allergic asthma.
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Pinoresinol 4-O-β-D-glucopyranoside
0 ImagesSynonyms: (+)-Pinoresinol 4-O-β-D-glucopyranosidePinoresinol 4-O-β-D-glucopyranoside ((+)-Pinoresinol 4-O-β-D-glucopyranoside) is an orally active α-glucosidase inhibitor, with an IC50 of 48.13 μg/mL. Pinoresinol 4-O-β-D-glucopyranoside binds to estrogen receptors. Pinoresinol 4-O-β-D-glucopyranoside inhibits phosphodiesterase. Pinoresinol 4-O-β-D-glucopyranoside exhibits various activities such as antioxidant, anti-inflammatory, anti-hyperglycemic, hepatoprotective and anti-epileptic effects.
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3-Nitrophthalic acid
0 ImagesSynonyms: m-Nitrophthalic acid; o-Nitrophthalic acid; 3-Nitrophthalic acid3-Nitrophthalic acid (m-Nitrophthalic acid) is a nitro-substituted aromatic carboxylic acid that acts as a DPPH radical scavenger through hydrogen donation. 3-Nitrophthalic acid induces cellular oxidative stress and Apoptosis. 3-Nitrophthalic acid inhibits NRF2/HO-1 antioxidant signaling and impairs follicular development and ovulation. 3-Nitrophthalic acid can be used to construct functional MOF. 3-Nitrophthalic acid can be used in the study of premature ovarian insufficiency.
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Vasicine hydrochloride
0 ImagesVasicine hydrochloride (peganine hydrochloride) is a quinazoline alkaloid isolated from Justicia adhatoda. Vasicine hydrochloride activates PI3K/Akt signaling pathway, exhibits antioxidant, anti-inflammatory and antibacterial activities.
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Methylnissolin-3-O-glucoside
0 ImagesMethylnissolin-3-O-glucoside is a flavonoid glycoside derivative of Methylnissolin (HY-N2484). Methylnissolin-3-O-glucoside is isolated from plants of the genus Astragalus (Leguminosae). Methylnissolin-3-O-glucoside effectively induces the expression of AKT/Nrf2 and its downstream target genes HO-1 and NQO1. Methylnissolin-3-O-glucoside inhibits TNF-α-induced phosphorylation of MEK and ERK. Methylnissolin-3-O-glucoside exhibits free radical scavenging activity. Methylnissolin-3-O-glucoside inhibits cell proliferation and cell migration. Methylnissolin-3-O-glucoside is used in research on esophageal squamous cell carcinoma.
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Procyanidol B4
0 ImagesSynonyms: (-)-Procyanidin B4Procyanidol 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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N,N-Dimethylglycine hydrochloride
0 ImagesSynonyms: Dimethylglycine hydrochloride; DMG hydrochloride; N-Methylsarcosine hydrochlorideN,N-Dimethylglycine (Dimethylglycine) hydrochloride, a natural N-methylated glycine, is a nutrient supplement and acts as an NMDAR glycine site partial agonist. N,N-Dimethylglycine hydrochloride is a methyl donor that can improve immunity, act as an antioxidant to prevent oxidative stress, and scavenge excess free radicals. N,N-Dimethylglycine hydrochloride has antidepressant-like and surfactant effects.
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Broussochalcone A
0 ImagesBroussochalcone A is an antioxidant and an inhibitor of Xanthine Oxidase (IC50=2.21 μM), with free radical scavenging activity. Broussochalcone A inhibits iron-induced lipid peroxidation and nitric oxide synthesis in lipopolysaccharide (LPS) -activated macrophages. Broussochalcone A also induces Apoptosis of human renal carcinoma cells by increasing ROS levels and activating FOXO3 signaling pathways.
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Gardenin B
0 ImagesGardenin 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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Stictic acid
0 ImagesStictic acid is a Depsidone. Stictic acid is found in the edible lichens Lobaria pindarensis and Lobaria pulmonaria. Stictic acid inhibits LPS/Aβ42-induced mRNA expression of iNOS, IL-1β, TNF-α, and IL-6, and decreases LPS-induced COX-2 protein expression. Stictic acid inhibits Aβ42 fibril formation and aggregation. Stictic acid scavenges superoxide anions. Stictic acid exhibits anticancer activity against colon adenocarcinoma. Stictic acid is used in research on Alzheimer's disease and colon adenocarcinoma.
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Sorbifolin
0 ImagesSorbifolin, a flavone glucoside, can be isolated from the Pterogyne nitens. Sorbifolin has myeloperoxidase inhibitory and radical scavenging activities. Sorbifolin is also a MPO inhibitor with an IC50 value of 19.2 nM.
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Syringetin-3-O-glucoside
0 ImagesSynonyms: Syringetin 3-O-β-D-glucosideSyringetin-3-O-glucosid (Syringetin 3-O-β-D-glucoside), a flavonol glycoside, shows relatively weak DPPH and ABTS radical scavenging activity.
