Synonym: (−)-Catechin gallate; (2S,3R)-2-(3,4-Dihydroxyphenyl)-3,4-dihydro-1(2H)-benzopyran-3,5,7-triol 3-(3,4,5-trihydroxybenzoate)
CAS Number: 130405-40-2
Empirical Formula (Hill Notation): C22H18O10
Molecular Weight: 442.37
MDL Number: MFCD00214258
Linear Formula: C22H18O10
Product Type: Chemical
assay |
≥95.0% (HPLC) |
format |
neat |
grade |
primary reference standard |
InChI |
1S/C22H18O10/c23-11-6-14(25)12-8-19(32-22(30)10-4-16(27)20(29)17(28)5-10)21(31-18(12)7-11)9-1-2-13(24)15(26)3-9/h1-7,19,21,23-29H,8H2/t19-,21+/m1/s1 |
InChI key |
LSHVYAFMTMFKBA-CTNGQTDRSA-N |
manufacturer/tradename |
PhytoLab |
product line |
phyproof® Reference Substance |
SMILES string |
Oc1cc(O)c2C[C@@H](OC(=O)c3cc(O)c(O)c(O)c3)[C@@H](Oc2c1)c4ccc(O)c(O)c4 |
storage temp. |
2-8°C |
Biochem/physiol Actions: |
Antioxidant constituent of green tea. At μM concentrations, it inhibits VEGF-induced tyrosine phosphorylation. It also inhibits aromatase activity, an enzyme that converts androgens to estrogen and is thought to play a role in the etiology of breast cancer. |
General description: |
This substance is a primary reference substance with assigned absolute purity (considering chromatographic purity, water, residual solvents, inorganic impurities). The exact value can be found on the certificate. Produced by PhytoLab GmbH & Co. KG |
Legal Information: |
phyproof is a registered trademark of PhytoLab GmbH & Co. KG |
Purity |
≥95.0% (HPLC) |
Storage Temp. |
2-8°C |
UNSPSC |
41116107 |