(-)-Epicatechin gallate

表儿茶素没食子酸酯

Also known as: ECG, (-)-Epicatechin gallate, Epicatechin gallate, (-)-epicatechin-3-O-gallate, (-)-epicatechin-3-gallate, (2R,3R)-2-(3,4-Dihydroxyphenyl)-5,7-dihydroxy-3,4-dihydro-2H-chromen-3-yl 3,4,5-trihydroxybenzoate, (-)-cis-2-(3,4-Dihydroxyphenyl)-3,4-dihydro-1(2H)-benzopyran-3,5,7-triol 3-gallate, (-)-cis-3,3',4',5,7-Pentahydroxyflavane 3-gallate, Benzoic acid, 3,4,5-trihydroxy-, (2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-5,7-dihydroxy-2H-1-benzopyran-3-yl ester, Epicatechol, 3-gallate, (-)- (8CI)

(-)-Epicatechin gallate (CAS 1257-08-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C22H18O10 and a molecular weight of 442.372 g/mol. It is also known as ECG, Epicatechin gallate and (-)-epicatechin-3-O-gallate. Key properties include a melting point of 257-258ºC, a boiling point of 861.7±65.0 °C at 760 mmHg, a density of 1.8±0.1 g/cm3 and a flash point of 305.0±27.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1257-08-5
Jingsj CID
J-25493-3
Molecular Formula
C22H18O10
Chinese Name
表儿茶素没食子酸酯
Molecular Weight
442.372 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point257-258ºC
Boiling Point861.7±65.0 °C at 760 mmHg
Density1.8±0.1 g/cm3
Flash Point305.0±27.8 °C

Frequently Asked Questions

What is the CAS number of (-)-Epicatechin gallate?

The CAS number of (-)-Epicatechin gallate is 1257-08-5.

What are the molecular formula and molecular weight of (-)-Epicatechin gallate?

(-)-Epicatechin gallate has molecular formula C22H18O10 and molecular weight 442.372 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "(-)-Epicatechin gallate (CAS 1257-08-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-25493-3 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.