Epigallocatechin Gallate

Synonyms: (-)-Epigallocatechin gallate, EGCG, (-)-Epigallocatechin 3-gallate, (2R,3R)-2-(3,4,5-Trihydroxyphenyl)-3,4-dihydro-1(2H)-benzopyran-3,5,7-triol 3-(3,4,5-trihydroxybenzoate), Teavigo, 989-51-5

For procurement teams, the first question is whether the EGCG they receive next quarter will behave like the EGCG they qualified last quarter. Epigallocatechin gallate is a sensitive molecule: it oxidizes, it discolors, and its assay drifts if the extraction and drying steps are not tightly controlled. That is why buyers in this category ask for batch-specific HPLC data before they ask for price, and why we ship every lot with a full COA and retain samples for traceability.

This product is the purified catechin ester isolated from green tea (Camellia sinensis) leaves. It is supplied as a high-purity crystalline powder, typically ≥98% by HPLC, intended for use as a reference standard, a formulation active, or a research reagent. Unlike standard green tea extracts that carry a broad catechin profile, this is a single-compound material where the specification is built around EGCG content rather than total polyphenols.

Most volume moves into dietary supplement capsules and tablets, where formulators pair it with other tea catechins or use it as the sole active. It also appears in topical and cosmetic formulations, and in food and beverage applications where a precise, water-dispersible catechin dose is required. Because the powder is light and electrostatic, it handles best in contained blending systems.

Quality & Documentation

• Batch documentation: COA and MSDS with every shipment, TDS on request
• Traceability: Retained samples and batch records kept for each lot
• Verification: Third-party testing or sampling can be arranged at the customer’s nominated laboratory

Handling & Storage

Epigallocatechin gallate is hygroscopic and prone to oxidation, so keep it in a tightly sealed container away from light, heat and moisture. Store in a cool, dry place; do not expose to direct sunlight or open air for extended periods. Once a container is opened, reseal it promptly and use the contents as soon as practical.

During handling, avoid generating dust and use appropriate protective equipment. For transport, keep the material in its original packaging and protect it from moisture and physical damage. Do not store near strong oxidizing agents or sources of ignition.

Supply & Ordering

• Emballage: 1 kg, 5 kg, 25 kg
• Quantité minimale de commande: 1 kg
• Délai de livraison: 3 à 5 jours ouvrés (articles en stock)
• Documentation: COA, MSDS, TDS

Contact & Ordering Information

• Company: LyvBio Co., Ltd.
• Address: Room 5-0203, Courtyard 205, Lianhu District, Xi’an, Shaanxi, China
• Email: info@lyvbio.com
• Phone/WA: +86-182-9185-7498

send us your specification for a quotation.