英文别名CATECHIN-(4ALPHA->8)-EPICATECHIN; PROCYANIDIN B-4; PROCYANIDINDIMERB4; (+)-Catechin-(4α-8)-(-)-epicatechin; (2R,2'R)-2α-(3,4-Dihydroxyphenyl)-2'α-(3,4-dihydroxyphenyl)-4α,8'-bichroman-3β,3'α,5,5',7,7'-hexol; (2R,2'R,3S,3'R,4S)-2,2'-Bis(3,4-dihydroxyphenyl)-4,8'-bichroman-3,3',5,5',7,7'-hexol; (2R,2'R,3S,3'R,4α)-3,3',4,4'-Tetrahydro-2α,2'α-bis(3,4-dihydroxyphenyl)-4,8'-bi[2H-1-benzopyran]-3,3',5,7,7'-hexol; Proanthocyanidin B4; (2R,3R)-2-(3,4-dihydroxyphenyl)-8-[(2R,3S,4S)-2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-3,4-dihydro-2H-chromen-4-yl]-3,4-dihydro-2H-chromene-3,5,7-triol; Procyanidol B4 
