原花青素(OPC)

4α-Benzylthioepicatechin

Epicatechin-(4β->8)-4α-benzylthioepicatechin

(2S,3R,4S,5S,6R)-2-(((2R,3R)-4-(benzylthio)-2-(3,4-dihydroxyphenyl)-3,5-dihydroxychroman-7-yl)oxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol