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.
All Product Categories
-
Free Radical Scavengers Related Products (379)
Related Products (379)
-
Hydroxytyrosol acetate
0 ImagesHydroxytyrosol acetate is an orally active, blood-brain barrier-permeable multi-active compound with multiple effects including antibacterial, antioxidant, anti-platelet aggregation, and neuroprotective activities. Hydroxytyrosol acetate not only inhibits the growth of Vibrio by increasing bacterial membrane permeability, but also interacts with DNA and mediates supercoiled DNA relaxation. Meanwhile, Hydroxytyrosol acetate effectively reduces thrombosis and inhibits lipid oxidation by inhibiting COX activity and promoting vascular nitric oxide production. In terms of neuroprotection, Hydroxytyrosol acetate significantly alleviates neuronal apoptosis and inflammatory responses by up-regulating the expression level of ERβ, thereby improving cognitive function in Alzheimer's disease models. Hydroxytyrosol acetate has been widely used in scientific research related to Vibrio infection, arterial thrombosis, Alzheimer's disease and other related fields.
-
3-Hydroxyindole
0 ImagesCat. No.: HY-W277951CAS No.: 480-93-33-Hydroxyindole is a hydroxyindole compound. 3-Hydroxyindole can be isolated from the fruits of Aristotelia chilensis. 3-Hydroxyindole inhibits Ferroptosis and scavenges DPPH free radicals. 3-Hydroxyindole protects against β-amyloid-induced toxicity. 3-Hydroxyindole exhibits antioxidant activity. 3-Hydroxyindole can be used in research related to neurodegenerative diseases.
-
5-Hydroxyoxindole
0 ImagesCat. No.: HY-W001542CAS No.: 3416-18-05-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.
-
Pyruvic acid-d3 sodium
0 ImagesSynonyms: Sodium 2-oxopropanoate-d3; Acetylformic acid-d3 sodiumSodium 2-oxopropanoate-d3 is the deuterium labeled Sodium 2-oxopropanoate. Sodium 2-oxopropanoate (Sodium pyruvate), a three-carbon metabolite of Glucose, is a compound produced in the glycolytic pathway. Sodium 2-oxopropanoate is a free radical scavenger that can scavenge ROS.
-
Delphinidin-3-O-galactoside chloride
0 ImagesDelphinidin-3-O-galactoside chloride is an anthocyanin found in abbiteye blueberry. Delphinidin-3-O-galactoside chloride show inhibitory activitiesagainst α-glucosidase with an IC50 of 68.33 μM, and tyrosinase with an IC50 of 34.14 μM. Delphinidin-3-O-galactoside chloride attenuates HO-1 and HSP70 messenger RNA down-regulation, suppresses cytotoxicity, reduces endoplasmic reticulum stress responses, scavenges free radicals, reduces intracellular triglyceride levels and lipid droplet accumulation. Delphinidin-3-O-galactoside chloride can be used for the researches of diabesity, melanoma and inflammation.
-
Ferroptosis-IN-21
0 ImagesSynonyms: 1,2,3,4-Tetrahydroquinolin-8-ol; 8-hydroxy-1,2,3,4-tetrahydroquinolineFerroptosis-IN-21 is a ferroptosis inhibitor that protects against renal I/R injury by suppressing ferroptosis and directly scavenging peroxyl radicals. Ferroptosis-IN-21 displays broad-spectrum anti-ferroptotic efficacy across multiple inducers in renal tubular epithelial cells, with nanomolar potency and robust suppression of lipid Reactive Oxygen Species (ROS). Ferroptosis-IN-21 significantly ameliorates renal I/R injury in mice, reducing histological damage, functional impairment, and inflammatory cytokine expression, while decreasing lipid peroxidation biomarkers such as 4-hydroxynonenal. Ferroptosis-IN-12 can be used for research in the field of ferroptosis-targeted drug development.
-
3-Hydroxycoumarin
0 Images3-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.
-
(±)-Vasicine
0 Images(±)-Vasicine is the racemate of Vasicine. Vasicine (Peganine) significantly inhibits H+-K+-ATPase activity in vitro with an IC50 of 73.47 μg/mL. Anti-ulcer activity. Vasicine shows significant anti-secretory, antioxidant and cytoprotective effect.
-
Arjunolic acid
0 ImagesArjunolic acid is an orally active, multifunctional bioactive compound. Arjunolic acid exhibits free radical scavenging activity, as well as fungal and bacterial activities. Arjunolic acid induces apoptosis (Apoptosis) in various cancer cells. Arjunolic acid protects hepatocytes against induced oxidative stress and apoptosis by reducing reactive oxygen species and inhibiting NF-κB activation. Arjunolic acid regulates pancreatic dysfunction in type 2 diabetic rats by blocking the activation of the TLR-4/MyD88 and canonical Wnt pathways. Arjunolic acid inhibits neuroinflammation and ameliorates depressive behaviors via the SIRT1/AMPK/Notch1 signaling pathway in microglia. Arjunolic acid improves Crohn's disease-like colitis by restoring gut microbiota composition and inhibiting TLR4 signaling. Arjunolic acid suppresses osteosarcoma progression by inhibiting Wnt3a-mediated M2 polarization of macrophages. Arjunolic acid ameliorates diabetic retinopathy via the autophagy pathway regulated by AMPK/mTOR/HO-1. Arjunolic acid is applicable to research related to type 2 diabetes, organ toxicity, depression, Crohn's disease, osteosarcoma, diabetic retinopathy, and testicular dysfunction.
-
Plantanone B
0 ImagesSynonyms: Kaempferol 3-O-rhamnosylgentiobioside
-
Pyruvic acid-13C-1 sodium
0 ImagesSynonyms: Sodium 2-oxopropanoate-13C; Acetylformic acid-13C-1 sodiumSodium 2-oxopropanoate-13C is the 13C labeled Sodium 2-oxopropanoate. Sodium 2-oxopropanoate (Sodium pyruvate), a three-carbon metabolite of Glucose, is a compound produced in the glycolytic pathway. Sodium 2-oxopropanoate is a free radical scavenger that can scavenge ROS.
-
Cardanol monoene
0 ImagesCardanol 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.
-
Effusol
0 ImagesEffusol, a phenolic constituent from Juncus effuses, exhibits potent scavenging activity for DPPH and ABTS radicals, with IC50 values of 79 μM and 2.73 μM, respectively. Effusol rescues CA1 LTP attenuated by corticosterone, defending the hippocampal function against stress-induced cognitive decline.
-
4-MMPB
0 Images4-MMPB is a selective inhibitor of 15-lipoxygenase, with an IC50 of 18 μM. 4-MMPB has IC50s of 19.5 μM and 19.1 μM for soybean 15-lipoxygenase (SLO) and human 15-lipoxygenase-1 (15-LOX-1), respectively. 4-MMPB has potential for the research of prostate cancer.
-
Nelonemdaz
0 ImagesSynonyms: Salfaprodil free base; Neu2000Nelonemdaz (Salfaprodil free base) is an NR2B-selective and uncompetitive antagonist of N-methyl-D-aspartate (NMDA). Nelonemdaz is also a free radical scavenger. Nelonemdaz has excellent neuroprotection against NMDA- and free radical-induced cell death.
-
Cyclobisdemethoxycurcumin
0 ImagesCat. No.: HY-N11469CAS No.: 1042441-12-2Cyclobisdemethoxycurcumin is an antioxidant agent with IC50s of ~250 μM and 15-20 μM in DPPH radical scavenging assay and 2-DR oxidation assay, respectively.
-
(-)-Taxifolin
0 ImagesSynonyms: (-)-Dihydroquercetin(-)-Taxifolin is the low-activity isomer of Taxifolin. Taxifolin is an orally effective collagenase inhibitor with an IC50 of 193.3 μM. Taxifolin dose-dependently reduces the levels of Smad-2, α-SMA, CTGF, type I collagen, NF-κB and FN in renal tissues, while decreasing serum levels of IL-1β, TNF-α, MDA, Scr and BUN, increasing SOD levels and reversing 27 serum metabolic biomarkers. Taxifolin inhibits the growth of a variety of pathogenic bacteria. Taxifolin can be used in studies related to renal fibrosis.
