PHL82497

(−)-Catechin 3-gallate

phyproof^® Reference Substance

• Synonym(s): (−)-Catechin gallate, (2S,3R)-2-(3,4-Dihydroxyphenyl)-3,4-dihydro-1(2H)-benzopyran-3,5,7-triol 3-(3,4,5-trihydroxybenzoate)
• Empirical Formula (Hill Notation): C₂₂H₁₈O₁₀
• CAS Number: 130405-40-2
• Molecular Weight: 442.37
• UNSPSC Code: 41116107
• NACRES: NA.24
• MDL number: MFCD00214258

Properties

• Product Name: (−)-Catechin 3-gallate, phyproof^® Reference Substance
• 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
• SMILES string: Oc1cc(O)c2C[C@@H](OC(=O)c3cc(O)c(O)c(O)c3)[C@@H](Oc2c1)c4ccc(O)c(O)c4
• InChI key: LSHVYAFMTMFKBA-CTNGQTDRSA-N
• grade: primary reference standard
• product line: phyproof^® Reference Substance
• assay: ≥95.0% (HPLC)
• manufacturer/tradename: PhytoLab
• format: neat
• storage temp.: 2-8°C

Description

Biochem/physiol Actions

Antioxidant constituent of green tea.

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

Safety Information

• pictograms: GHS07
• signalword: Warning
• hcodes: H315,H319,H335
• pcodes: P261 - P264 - P280 - P304 + P340 + P312 - P337 + P313 - P403 + P233
• Hazard Classifications: Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• target_organs: Respiratory system
• Storage Class: 11 - Combustible Solids
• wgk: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable