Epicatechin Gallate
CAS: 1257-08-5
CAT: 6217
Abstract
ECG (Epicatechin Gallate, CAS 1257-08-5), also known as (−)-epicatechin-3-gallate, is a major bioactive catechin found in green tea (Camellia sinensis). It ranks among the most important polyphenols in green tea leaves. ECG acts as a powerful antioxidant. Researchers often study it together with EGCG for its potential benefits in human health. It shows strong antioxidant, anti-inflammatory, and metabolic effects.
Green tea catechins, including ECG, make up a large part of the dry leaf weight. They serve as key marker compounds for quality control. Manufacturers use them to standardize green tea extracts in dietary supplements, nutraceuticals, and functional foods.
Lab and preclinical studies show that ECG effectively scavenges free radicals. It also modulates important cellular pathways and works well alongside other catechins. ECG functions as an essential reference standard. Laboratories rely on it for accurate measurement and method validation when analyzing green tea products.
Planta Analytica supplies high-purity ECG as an analytical reference standard. This product helps laboratories worldwide perform precise quantification, develop reliable methods, and standardize green tea extracts.
You can find additional reference standards here.
References
Withanoside IV and its active metabolite
Compound Details
| CAS | 1257-08-5 |
|---|---|
| Molecular Weight | 442.4 g/mol |
| Chemical Formula | C₂₂H₁₈O₁₀ |
| IUPAC | [(2R,3R)-2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-3,4-dihydro-2H-chromen-3-yl] 3,4,5-trihydroxybenzoate |
| Synonyms | (-)-Epicatechin-3-O-gallate |
| SMILES | C1C(C(OC2=CC(=CC(=C21)O)O)C3=CC(=C(C=C3)O)O)OC(=O)C4=CC(=C(C(=C4)O)O)O |
| Purity | 95%+ |
| Storage Temperature | Below −18°C |
| Storage Conditions | Dry, freezer |
$6.00 - $23.00 / milligram
| Range (milligram) | Price ($/milligram) |
|---|---|
| 5 - 24 milligram | $23.00 / milligram |
| 25 - 99 milligram | $12.00 / milligram |
| 100 - 249 milligram | $9.00 / milligram |
| 250 - 499 milligram | $6.00 / milligram |
Technical Support
Product information is from published literature. Due to the nature of scientific experimentation, results or specific product application may vary (e.g., selectivity, detector response). If you have questions about the product, its application, and associated analytics, please contact our technical support team.
Product Use Disclaimer
Products are sold as laboratory reference materials, to be used for diagnostic and in vivo testing. The samples are not certified for veterinary or human use.




