... .Specification 90%-99% 4.We can supply:EGCG,EC,ECG,EGC,GCG Tea Catechinstraditionally called tea tannin, ... (EGCG), (-)-epigallocatechin (EGC), (-)-epicatechin gallate (ECG), (+)-epicatechin (EC), (-)-gallocatechin gallate (GCG), and (-)-catechin. The catechin mainly exists in ... active and water-soluble component from green tea... EC ( Epicatechin )EC is another kind of potent components extracted from ...