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Merck
CN

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)

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About This Item

Empirical Formula (Hill Notation):
C22H18O10
CAS Number:
130405-40-2
Molecular Weight:
442.37
UNSPSC Code:
41116107
NACRES:
NA.24
MDL number:
MFCD00214258

Key Documents

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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

Related Categories

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

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.

Legal Information

phyproof is a registered trademark of PhytoLab GmbH & Co. KG

pictograms

Exclamation mark
GHS07

signalword

Warning

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

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Certificates of Analysis (COA)

Lot/Batch Number
179859
132449864
128299041
83679867
62689013

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