Synonyms: [4,8'-Bi-2H-1-benzopyran]-3,3',5,5',7,7'-hexol,2,2'-bis(3,4-dihydroxyphenyl)-3,3',4,4'-tetrahydro-, [2R-[2a,3b,4a(2'R*,3'S*)]]-;[4,8''-Biflavan]-3,3',3'',3''',4',4''',5,5'',7,7''-decol,stereoisomer (8CI);8)-(+)-catechin;(-)-Procyanidin B3;8)-catechin;Proanthocyanidin B3;Procyanidol B3;