The molecule is a flavonoid oxoanion resulting from the deprotonation of the hydroxy group at position 7 of the flavone moiety of quercetin 3-O-beta-D-glucosyl-(1->2)-beta-D-glucoside. The major species at pH 7.3. It is a conjugate base of a quercetin 3-O-beta-D-glucosyl-(1->2)-beta-D-glucoside.
4-[3-[(2S,3R,4S,5S,6R)-4,5-dihydroxy-6-(hydroxymethyl)-3-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxy-5,7-dihydroxy-4-oxochromen-2-yl]-2-hydroxyphenolate