The molecule is a gallate ester resulting from the formal condensation of gallic acid with 5-hydroxy group of (-)-epicatechin. Isolated from Orostachys japonica, it acts as an inhibitor of the enzyme mu-calpain (EC 3.4.22.52). It has a role as an EC 3.4.22.52 (calpain-1) inhibitor and a plant metabolite. It is a catechin and a gallate ester. It derives from a (-)-epicatechin.
[(2R,3R)-2-(3,4-dihydroxyphenyl)-3,7-dihydroxy-3,4-dihydro-2H-chromen-5-yl] 3,4,5-trihydroxybenzoate