The molecule is a carboxylic ester resulting from the formal condensation of caffeic acid with the hydroxy group at position 6 of the terminal glucose residue of quercetin 3-O-beta-D-glucosyl-(1->2)-beta-D-glucoside. It is a tetrahydroxyflavone and a carboxylic ester. It derives from a quercetin 3-O-beta-D-glucosyl-(1->2)-beta-D-glucoside and a trans-caffeic acid. It is a conjugate acid of a quercetin 3-O-[(6-O-caffeoyl-beta-D-glucosyl)-(1->2)-beta-D-glucoside](2-).
[(2R,3S,4S,5R,6S)-6-[(2S,3R,4S,5S,6R)-2-[2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-4-oxochromen-3-yl]oxy-4,5-dihydroxy-6-(hydroxymethyl)oxan-3-yl]oxy-3,4,5-trihydroxyoxan-2-yl]methyl (E)-3-(3,4-dihydroxyphenyl)prop-2-enoate