procyanidin procyanidin B6 0 578.14243 578.526 Oc1cc(O)c2c(c1)O[C@H](c1ccc(O)c(O)c1)[C@@H](O)[C@@H]2c1c(O)cc2c(c1O)C[C@H](O)[C@@H](c1ccc(O)c(O)c1)O2 (2R,2'R,3S,3'S,4R)-2,2'-bis(3,4-dihydroxyphenyl)-3,3',4,4'-tetrahydro-2H,2'H-4,6'-bichromene-3,3',5,5',7,7'-hexol Catechin-(4alpha->6)-catechin A proanthocyanidin consisting of two molecules of (+)-catechin joined by a bond between positions 4 and 6' in α-configuration. Procyanidin B6 is isolated from leaves and fruit of cowberry <em>Vaccinium vitis-idaea</em> and other plants. It can also be found in grape seeds and in beer. pubmed:23625307 Procyanidin dimer B6 GMISZFQPFDAPGI-ZBRHZRBFSA-N Catechin(4a->6)catechin (2R,2'R,3S,3'S,4R)-2,2'-bis(3,4-dihydroxyphenyl)-3,3',4,4'-tetrahydro-2H,2'H-4,6'-bichromene-3,3',5,5',7,7'-hexol CHEBI:75619 wikipedia.en:Procyanidin_B6 hmdb:HMDB0038367 C30H26O12 reaxys:3586527 InChI=1S/C30H26O12/c31-13-7-19(36)24-23(8-13)42-30(12-2-4-16(33)18(35)6-12)28(40)26(24)25-20(37)10-22-14(27(25)39)9-21(38)29(41-22)11-1-3-15(32)17(34)5-11/h1-8,10,21,26,28-40H,9H2/t21-,26-,28-,29+,30+/m0/s1 chebi_ontology C-(4,6)-C