Description

(-)-Gallocatechin Gallate is a specific stereoisomer of a polyphenolic catechin derivative, a key bioactive compound found in green tea and other plant sources. Its value lies in its potent antioxidant and biological activity, making it a critical reference standard and active ingredient for research and product development. This compound is essential for suppliers to the nutraceutical, pharmaceutical, and cosmetic industries focused on high-purity botanical extracts and bioactive molecules.

Application

• Pharmaceutical Research & Development: Used as a high-purity reference standard in analytical methods (HPLC, LC-MS) for quality control of botanical extracts and drug formulations.
• Nutraceutical Formulation: Incorporated into dietary supplements and functional foods for its well-documented antioxidant properties and potential health benefits.
• Cosmetic & Skincare Products: Serves as an active ingredient in anti-aging, protective, and skin-brightening formulations due to its ability to neutralize free radicals.
• Biochemical & Life Science Research: Employed in in vitro and in vivo studies to investigate mechanisms related to oxidative stress, inflammation, and cellular signaling pathways.
• Standard for Tea & Botanical Analysis: Critical for the accurate quantification of catechin profiles in tea leaves, extracts, and related agricultural products.

Basic Information

Product Name	(-)-Gallocatechin Gallate
CAS No.	4233-96-9
Molecular Formula	C22H18O11
Molecular Weight	458.37 g/mol
Synonyms	(-)-GCG; Gallocatechin 3-gallate; 3-O-Galloyl-(-)-gallocatechin; Epigallocatechin Gallate isomer; Tea catechin GCG; 2-(3,4,5-Trihydroxyphenyl)-3,4-dihydro-1(2H)-benzopyran-3,5,7-triol 3-(3,4,5-trihydroxybenzoate); 1(2H)-Benzopyran-3,5,7-triol, 2-(3,4,5-trihydroxyphenyl)-3,4-dihydro-, 3-(3,4,5-trihydroxybenzoate), (2R,3R)-
EINECS	Contact for details

Quality Control

Our (-)-Gallocatechin Gallate is produced and tested under strict quality management protocols to ensure identity, purity, and consistency. Each batch is analyzed using advanced techniques including HPLC and NMR to meet stringent specifications for research and industrial use. A comprehensive Certificate of Analysis (COA) detailing purity, impurities, and analytical methods is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. For long-term stability, store at 2-8°C under an inert atmosphere (e.g., nitrogen or argon) to minimize oxidation. The container should be kept in a cool, dry, and well-ventilated area separate from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (HPLC)	Conforms to reference standard
Identification (IR)	Conforms to structure
Assay (HPLC)	≥95.0%
Water Content (KF)	≤5.0%
Residue on Ignition	≤0.5%
Heavy Metals (as Pb)	≤20 ppm
Related Substances (HPLC)	Total impurities ≤5.0%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.