1',2'-(3,4-dihydroxyphenyl-alpha,beta-dioxoethanol)-4'-O-caffeoyl-O-rhamnopyranosyl-1-3-O-glucopyranoside
1',2'-(3,4-dihydroxyphenyl-alpha,beta-dioxoethanol)-4'-o-caffeoyl-o-rhamnopyranosyl-1-3-o-glucopyranoside