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(-)-ECG-3''-O-ME

CAS No.
83104-86-3
Chemical Name:
(-)-ECG-3''-O-ME
Synonyms
Epicatechin 3-O-(3-O-methyl)gallate;(-)-ECG-3''-O-ME;(-)-EPICATECHIN 3-(3''-O-METHYL)GALLATE;(-)-Epicatechin-3-(3''-O-methyl) gallate;(-)-Epicatechin 3-(3''-O-Methyl)gallate 〔(-)-ECg-3''-O-Me〕;(-)-Epicatechin 3-(3''-O-Methyl)gallate (natural) 〔(-)-ECg-3''-O-Me〕;(-)-Epicatechin 3-(3”-O -methyl)gallate [ (-)-ECg-3”-O -Me ] (natural);Benzoic acid,3,4-dihydroxy-5-methoxy-,(2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-5,7-dihydroxy-2H-1-benzopyran-3-ylester;3,4-Dihydroxy-5-methoxy-benzoic acid (2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-5,7-dihydroxy-2H-1-benzopyran-3-yl ester
CBNumber:
CB5322431
Molecular Formula:
C23H20O10
Molecular Weight:
456.4
MDL Number:
MFCD06799448
MOL File:
83104-86-3.mol
MSDS File:
SDS
Last updated:2026-05-28 04:44:20
Product description Number Pack Size Price
(-)-Epicatechin-3-(3''-O-methyl) gallate ≥98% 380210 5mg $745
(-)-Epicatechin-3-(3''-O-methyl)gallate CFN92080 5mg $468

(-)-ECG-3''-O-ME Properties

Melting point 248-250℃ (decomposition)
Boiling point 812.9±65.0 °C(Predicted)
Density 1.69±0.1 g/cm3(Predicted)
solubility Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc.
form Powder
pka 7.92±0.25(Predicted)

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H335
Precautionary statements  P280-P305+P351+P338

(-)-ECG-3''-O-ME price More Price(2)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Usbiological 380210 (-)-Epicatechin-3-(3''-O-methyl) gallate ≥98% 83104-86-3 5mg $745 2026-06-03 Buy
Arctom CFN92080 (-)-Epicatechin-3-(3''-O-methyl)gallate 83104-86-3 5mg $468 2021-12-16 Buy
Product number Packaging Price Buy
380210 5mg $745 Buy
CFN92080 5mg $468 Buy

(-)-ECG-3''-O-ME Chemical Properties,Uses,Production

Uses

(-)-Epicatechin 3-(3-O-methylgallate) is a catechin, that can be isolated from tea leaf. (-)-Epicatechin 3-(3-O-methylgallate) shows anti-inflammatory activity[1][2].

Definition

ChEBI: Epicatechin 3-O-(3'-O-methylgallate) is a gallate ester obtained by formal condensation of the carboxy group of gallic acid with the (3R)-hydroxy group of epicatechin. It has a role as a Camellia sinensis metabolite and an anti-inflammatory agent. It is a member of flavans, a gallate ester, a polyphenol and a monomethoxybenzene. It is functionally related to a (-)-epicatechin.

References

[1] Saijo R . Isolation and Chemical Structures of Two New Catechins from Fresh Tea Leaf[J].Agricultural and Biological Chemistry, 1982.
[2] Iijima T, et al. Synthesis of (-)-epicatechin 3-(3-O-methylgallate) and (+)-catechin 3-(3-O-methylgallate), and their anti-inflammatory activity. Chem Biodivers. 2009 Apr;6(4):520-6. DOI:10.1002/cbdv.200800224

70845-73-7
83104-86-3
Synthesis of (-)-ECG-3''-O-ME from 3,4-Bis(benzyloxy)-5-methoxybenzoic acid

(-)-ECG-3''-O-ME Preparation Products And Raw materials

Raw materials

Preparation Products

(-)-ECG-3''-O-ME Suppliers

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(-)-EPICATECHIN 3-(3''-O-METHYL)GALLATE (-)-ECG-3''-O-ME 3,4-Dihydroxy-5-methoxy-benzoic acid (2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-5,7-dihydroxy-2H-1-benzopyran-3-yl ester (-)-Epicatechin 3-(3''-O-Methyl)gallate (natural) 〔(-)-ECg-3''-O-Me〕 (-)-Epicatechin 3-(3''-O-Methyl)gallate 〔(-)-ECg-3''-O-Me〕 Benzoic acid,3,4-dihydroxy-5-methoxy-,(2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-5,7-dihydroxy-2H-1-benzopyran-3-ylester (-)-Epicatechin-3-(3''-O-methyl) gallate (-)-Epicatechin 3-(3”-O -methyl)gallate [ (-)-ECg-3”-O -Me ] (natural) Epicatechin 3-O-(3-O-methyl)gallate 83104-86-3