Term Name:	proanthocyanidin
Synonyms:	condensed tannins, polyflavonoid tannins, proanthocyanidins
Definition:	A flavonoid oligomer obtained by the the condensation of two or more units of hydroxyflavans.
Ontology:	ChEBI [CHEBI:26267] ( EBI )

Relationships

is a type of:	flavonoid oligomer tannin
has subtype:	(+)-catechin-(4alpha->6)-(+)-gallocatechin (+)-catechin-(4alpha->8)-(-)-epigallocatechin (+)-gallocatechin-(4alpha->6)-(+)-catechin (+)-gallocatechin-(4alpha->8)-(+)-catechin (+)-gallocatechin-(4alpha->8)-(-)-epicatechin (+)-gallocatechin-(4beta->8)-(+)-catechin (-)-epicatechin-(4alpha->8)-(-)-epicatechin (-)-epicatechin-(4alpha->8)-(-)-epicatechin-3'-O-gallate (-)-epicatechin-(4beta->8)-(+)-gallocatechin (-)-epicatechin-(4beta->8)-(-)-epigallocatechin (-)-epigallocatechin-(4beta->6)-(+)-catechin (-)-epigallocatechin-(4beta->8)-(-)-epicatechin (4alpha->8)-bis-4'-O-methylgallocatechin [epicatechin-(4beta->8)]5-epicatechin afzelechin-(4alpha->8)-afzelechin arecatannin B1 cassiatannin A cinnamtannin A2 Cinnamtannin A3 Cinnamtannin A4 cinnamtannin B-1 cinnamtannin D-1 Cinnamtannin D2 dracorubin ent-Fisetinidol-(4beta->8)-catechin-(6->4beta)-ent-fisetinidol epicatechin-(4beta->8)-4'-O-methylgallocatechin epigallocatechin-(4beta->8)-4'-O-methylgallocatechin Epigallocatechin-(4beta->8)-epicatechin-3-O-gallate ester epigallocatechin-(4beta->8)-epigallocatechin-3-O-gallate epigallocatechin-(4beta->8,2beta->O-7)-epicatechin Gallocatechin-(4alpha->8)-epigallocatechin Gambiriin C Guibourtinidol-(4alpha->6)-catechin Kandelin A-1 mahuannin D parameritannin A-1 proanthocyanidin A2 procyanidin procyanidin B1 procyanidin B1 3'-O-gallate procyanidin B1 3-O-gallate procyanidin B2 procyanidin B2 3'-O-gallate procyanidin B2 3-O-gallate procyanidin B3 procyanidin B3 3'-O-gallate procyanidin B3 3-O-gallate procyanidin B4 procyanidin B4 3'-O-gallate procyanidin B4 3-O-gallate procyanidin B5 procyanidin B6 procyanidin B8 procyanidin C1 procyanidin C2 Robinetinidol-(4alpha->8)-catechin-(6->4alpha)-robinetinidol theasinensin A
has_functional_parent:	hydroxyflavan
inverse has_part:	willow bark extract