... certificate 3.Specification 90%-99% Epigallocatechin gallateOur product, EGCG(epigallocatechin gallate) is a kind of component extracted from the . It ... ,5,7-triol 3-(3,4, 5-trihydroxybenzoate),(-)-Epigallocatechin gallate, (-)-Epigallocatechin gallate 3-O-gallateMolecular Formula: C22H18O11Molecular Weight: 458.4Solubility: ... added to this powerful chain of production. Epigallocatechin gallate(EGCG)