procyanidin procyanidin B1 0 578.14243 578.526 Oc1cc(O)c2c(c1)O[C@H](c1ccc(O)c(O)c1)[C@H](O)[C@H]2c1c(O)cc(O)c2c1O[C@H](c1ccc(O)c(O)c1)[C@@H](O)C2 Endotelon InChI=1S/C30H26O12/c31-13-7-20(37)24-23(8-13)41-29(12-2-4-16(33)19(36)6-12)27(40)26(24)25-21(38)10-17(34)14-9-22(39)28(42-30(14)25)11-1-3-15(32)18(35)5-11/h1-8,10,22,26-29,31-40H,9H2/t22-,26+,27+,28+,29+/m0/s1 pubmed:21405989 C30H26O12 reaxys:1339969 hmdb:HMDB0029754 Proanthocyanidin B1 wikipedia.en:Procyanidin_B1 lipidmaps:LMPK12030001 Epicatechin(4beta->8)catechin knapsack:C00002917 cas:82262-99-5 XFZJEEAOWLFHDH-UKWJTHFESA-N A proanthocyanidin consisting of (−)-epicatechin and (+)-catechin units joined by a bond between positions 4 and 8' respectively in a β-configuration.. Procyanidin B1 can be found in <em>Cinnamomum verum</em> (Ceylon cinnamon, in the rind, bark or cortex), in <em>Uncaria guianensis</em> (cat's claw, in the root), and in <em>Vitis vinifera</em> (common grape vine, in the leaf) or in peach. (2R,2'R,3R,3'S,4R)-2,2'-bis(3,4-dihydroxyphenyl)-3,3',4,4'-tetrahydro-2H,2'H-4,8'-bichromene-3,3',5,5',7,7'-hexol kegg.compound:C10221 pubmed:23993614 pubmed:22473647 Epicatechin-(4beta->8)-ent-epicatechin pubmed:22227333 chebi_ontology (2R,2'R,3R,3'S,4R)-2,2'-bis(3,4-dihydroxyphenyl)-3,3',4,4'-tetrahydro-2H,2'H-4,8'-bichromene-3,3',5,5',7,7'-hexol CHEBI:75633 pubmed:24250715 EC-(4b,8)-C Procyanidin dimer B1