The molecule is a proanthocyanidin consisting of (-)-epigallocatechin and (+)-catechin units joined by a (4alpha->6)-linkage. It has a role as a metabolite. It is a hydroxyflavan, a proanthocyanidin, a biflavonoid and a polyphenol. It derives from a (-)-epigallocatechin and a (+)-catechin.
(2R,3S)-2-(3,4-dihydroxyphenyl)-6-[(2R,3R,4S)-3,5,7-trihydroxy-2-(3,4,5-trihydroxyphenyl)-3,4-dihydro-2H-chromen-4-yl]-3,4-dihydro-2H-chromene-3,5,7-triol