... gallate 2.Cas No.: 989-51-5 3.GMP certificate 4.Specification 90%-99% EGCG Our product, EGCG(epigallocatechin gallate) ... the toxicity on the heart.Specifications: SpecificationOther items*ColorApplicationEGCG 99%/Off-whiteMedicine, AnalysisEGCG 98%/Off-whiteMedicine, AnalysisEGCG 95%/Off ... (2R, 3R)-2-(3,4,5-Trihydroxy-phenyl)-3,4-dihydro-1(2H)-benzopyran-3,5,7-triol 3-(3,4, 5-trihydroxybenzoate),(-)- ...