The molecule is a flavonoid oxoanion obtained by deprotonation of the 5-hydroxy group of genistein 7-O-beta-D-glucoside. It is the major microspecies at pH 7.3 (according to Marvin v 6.2.0.). It is a conjugate base of a genistein 7-O-beta-D-glucoside.
3-(4-hydroxyphenyl)-4-oxo-7-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxychromen-5-olate