catechin Members of the class of hydroxyflavan that have a flavan-3-ol skeleton and its substituted derivatives. chebi_ontology LINCS:LSM-1682 (+/-)-Catechin C1(C=2C=C(C(O)=CC2)O)OC=3C(=C(C=C(C3)O)O)CC1O catechin KEGG:C17590 InChI=1S/C15H14O6/c16-8-4-11(18)9-6-13(20)15(21-14(9)5-8)7-1-2-10(17)12(19)3-7/h1-5,13,15-20H,6H2 290.269 PFTAWBLQPZVEMU-UHFFFAOYSA-N CHEBI:23053 290.07904 0 catechins C15H14O6 carbon group molecular entity