Synonyms: 2H-1-Benzopyran-3,5,7-triol,2-(3,4-dihydroxyphenyl)-3,4-dihydro-, (2R-cis)-; Epicatechol, (-)- (8CI);(-)-(2R:3R)-5,7,3',4'-Tetrahydroxyflavan-3-ol; (-)-Epicatechin;(-)-Epicatechol; (2R,3R)-(-)-Epicatechin; Epicatechin; Epicatechol;L-Epicatechin; NSC 81161; epi-Catechin; epi-Catechol; l-Acacatechin;l-Epicatechin; l-Epicatechol