procyanidin procyanidin B2 0 578.14243 578.526 XFZJEEAOWLFHDH-NFJBMHMQSA-N pubmed:23250807 pubmed:23474305 EC-(4b,8)-EC reaxys:1279736 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 hmdb:HMDB0033973 pubmed:23811048 pubmed:24136906 C30H26O12 pubmed:23460126 cas:29106-49-8 pubmed:23922881 pubmed:23472464 pubmed:23360097 (2R,2'R,3R,3'R,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_ontology (2R,2'R,3R,3'R,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 pubmed:23985492 CHEBI:75632 Proanthocyanidin B2 wikipedia.en:Procyanidin_B2 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-/m1/s1 pubmed:23285083 kegg.compound:C17639 Epicathechin-(4beta->8)-epicathechin Procyanidol B2 A proanthocyanidin consisting of two molecules of (−)-epicatechin joined by a bond between positions 4 and 8' in a β-configuration. Procyanidin B2 can be found in <em>Cinchona pubescens</em> (Chinchona, in the rind, bark and cortex), in <em>Cinnamomum verum</em> (Ceylon cinnamon, in the rind, bark and cortex), in <em>Crataegus monogyna</em> (Common hawthorn, in the flower and blossom), in <em>Uncaria guianensis</em> (Cat's claw, in the root), in <em>Vitis vinifera</em> (Common grape vine, in the leaf), in <em>Litchi chinensis</em> (litchi, in the pericarp), in the apple, in <em>Ecdysanthera utilis</em> and in red wine. lipidmaps:LMPK12030002 pubmed:22042007