(-)-(2R:3R)-5,7,3',4'-Tetrahydroxyflavan-3-ol (-)-Epicatechin (-)-Epicatechol (2R,3R)-(-)-Epicatechin 2-(3,4-Dihydroxyphenyl)-2,3,4-trihydro-3,5,7-trihydroxychromene 2545-08-6 2H-1-Benzopyran-3,5,7-triol, 2-(3,4-dihydroxyphenyl)-3,4-dihydro-, (2R,3R)- 2H-1-Benzopyran-3,5,7-triol, 2-(3,4-dihydroxyphenyl)-3,4-dihydro-, (2R-cis)- (9CI) 490-46-0 CCRIS 7097 EINECS 207-710-1 Epicatechin Epicatechol Epicatechol, (-)- L-Epicatechin NSC 81161 epi-Catechin epi-Catechol l-Acacatechin l-Epicatechol