1. Natural Products
  2. Flavonoids
  3. Flavanols

Flavanols

Flavanols (23):

Cat. No. Product Name CAS No. Purity Chemical Structure
  • HY-N0898
    Catechin 154-23-4 99.57%
    Catechin ((+)-Catechin) inhibits cyclooxygenase-1 (COX-1) with an IC50 of 1.4 μM.
    Catechin
  • HY-N0001
    (-)-Epicatechin 490-46-0 99.0%
    (-)-Epicatechin inhibits cyclooxygenase-1 (COX-1) with an IC50 of 3.2 μM. (-)-Epicatechin inhibits the IL-1β-induced expression of iNOS by blocking the nuclear localization of the p65 subunit of NF-κB.
    (-)-Epicatechin
  • HY-N1992
    Theaflavin 3,3'-digallate 30462-35-2 99.73%
    Theaflavin 3,3'-digallate (TF-3) is a potent Zika virus (ZIKV) protease inhibitor with an IC50 of 2.3 μM. Theaflavin 3,3'-digallat directly binds to ZIKVpro (Kd=8.86 µM) and inhibits ZIKV replication. Theaflavin 3,3'-digallat inhibits the activity of gp41 and NS2B-3 protease and has antiviral activity against HSV and HIV-1. Theaflavin 3,3'-digallate, the typical pigment in black tea, is a potent antitumor agent.
    Theaflavin 3,3'-digallate
  • HY-100583
    (-)-(S)-Equol 531-95-3 98.78%
    (-)-(S)-Equol is a high affinity ligand for estrogen receptor β with a Ki of 0.73 nM.
    (-)-(S)-Equol
  • HY-N0002
    (-)-Epicatechin gallate 1257-08-5 98.20%
    (-)-Epicatechin gallate (Epicatechin gallate) inhibits cyclooxygenase-1 (COX-1) with an IC50 of 7.5 μM.
    (-)-Epicatechin gallate
  • HY-N0522
    (-)-Gallocatechin gallate 4233-96-9 99.95%
    (-)-Gallocatechin gallate is the polyphenol isolated from tea, with cancer-preventive activities.
    (-)-Gallocatechin gallate
  • HY-N0243
    Theaflavin 4670-05-7 99.69%
    Theaflavin is a suitable natural inhibitor against influenza A (H1N1) neuraminidase.
    Theaflavin
  • HY-N0225
    (-)-Epigallocatechin 970-74-1 98.01%
    (-)-Epigallocatechin (Epigallocatechin) is the most abundant flavonoid in green tea, can bind to unfolded native polypeptides and prevent conversion to amyloid fibrils.
    (-)-Epigallocatechin
  • HY-N0355
    (+)-Catechin hydrate 225937-10-0 99.59%
    (+)-Catechin hydrate inhibits cyclooxygenase-1 (COX-1) with an IC50 of 1.4 μM.
    (+)-Catechin hydrate
  • HY-N0244
    Theaflavin-3'-gallate 28543-07-9 98.68%
    Theaflavin-3'-gallate, a black tea theaflavin monomer, is regarded as the biologically important active component of black tea and provides health benefits. Theaflavin-3'-gallate acts as prooxidants and induces oxidative stress in the carcinoma cells. Theaflavin-3'-gallate reacts directly with reduced glutathione (GSH) in a time- and concentration-dependent manner.
    Theaflavin-3'-gallate
  • HY-N0898A
    (-)-Catechin 18829-70-4 98.78%
    (-)-Catechin is an isomer of Catechin having a trans 2S,3R configuration at the chiral center. Catechin inhibits cyclooxygenase-1 (COX-1) with an IC50 of 1.4 μM.
    (-)-Catechin
  • HY-N0356
    (-)-Catechin gallate 130405-40-2 99.51%
    (-)-Catechin gallate is a minor constituent in green tea catechins. (-)-Catechin gallate inhibits the activity of COX-1 and COX-2 enzymes.
    (-)-Catechin gallate
  • HY-119580
    Leucocyanidin 480-17-1
    Leucocyanidin is an active anti-ulcerogenic ingredient was extracted from unripe plantain banana. Leucocyanidin demonstrates a significant protective effect against Aspirin-induced erosions in rat models.
    Leucocyanidin
  • HY-N0245
    Theaflavin-3-gallate 30462-34-1 98.24%
    Theaflavin-3-gallate, a black tea theaflavin monomer, is regarded as the biologically important active component of black tea and provides health benefits. Theaflavin-3-gallate acts as prooxidants and induces oxidative stress in the carcinoma cells. Theaflavin-3-gallate reacts directly with reduced glutathione (GSH) in a time- and concentration-dependent manner.
    Theaflavin-3-gallate
  • HY-N0521A
    (+)-Gallocatechin 970-73-0 99.68%
    (+)-Gallocatechin is a polyphenol compound from green tea, possesses anticancer activity.
    (+)-Gallocatechin
  • HY-N0521
    (-)-Gallocatechin 3371-27-5 99.97%
    (-)-Gallocatechin, an epimer of (-)-Epigallocatechin (EGC), is contained in various tea products. (-)-Gallocatechin has antioxidant activities.
    (-)-Gallocatechin
  • HY-N2821
    (+)-Afzelechin 2545-00-8 ≥98.0%
    (+)-Afzelechin, isolated from rhizomes of Bergenia ligulata, is an alpha-glucosidase activity inhibitor with an ID50 (50% inhibition dose) value of 0.13 mM. (+)-Afzelechin can delay the absorption of carbohydrates in food to suppress postprandial hyperglycemia and hyperinsulinemia.
    (+)-Afzelechin
  • HY-N7668
    Neotheaflavin 36451-14-6 98.08%
    Neotheaflavin, from black tea, inhibits pancreatic lipase.
    Neotheaflavin
  • HY-N7664
    Isotheaflavin 31701-93-6 99.28%
    Isotheaflavin is one of antioxidant polyphenols in black tea.
    Isotheaflavin
  • HY-N2228
    (-)-Epigallocatechin-3-(3''-O-methyl) gallate 83104-87-4 ≥99.0%
    (-)-Epigallocatechin-3-(3''-O-methyl) gallate is a natural product isolated from the tea leaf, with strong antioxidative activity. (-)-Epigallocatechin-3-(3''-O-methyl) gallate has a strong cytotoxic activity for rat cancer cells.
    (-)-Epigallocatechin-3-(3''-O-methyl) gallate