The molecule is an oxonium betaine obtained by deprotonation of the 5 position of delfinidin 3-O-beta-D-glucoside. It is the major microspecies at pH 7.3. It is a conjugate base of a delphinidin 3-O-beta-D-glucoside.
5-hydroxy-3-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-2-(3,4,5-trihydroxyphenyl)chromen-7-one