product name: Gallocatechin gallate
CAS: 4233-96-9
MF: C22H18O11
MW: 458.37
Description:
storage temp: 2-8°C
Gallocatechin gallate (GCG) is the ester of gallocatechin and gallic acid and a type of catechin. It is an epimer of EGCG.
In a high temperature environment, an epimerization change is likely to occur, because heating results in the conversion from EGCG to GCG[1]. According to the referenced study the resulting CGC (the epimer of EGCG) results in even lower dietary cholesterol absorption than occurs with EGCG. While this may be a beneficial outcome with respect to cholesterol reduction activity, for those wishing to maximize the EGCG content of green tea infusions, it is considered inappropriate to infuse green tea or its extracts with overheated water.