The molecule is an organophosphate oxoanion obtained by removal of a total of three protons from the carboxy and phosphate groups of 2-O-[alpha-D-mannopyranosyl-(1->2)-alpha-D-glucopyranosyl]-3-O-phospho-D-glyceric acid; major species at pH 7.3. It is an organophosphate oxoanion, a carbohydrate acid derivative anion and a monocarboxylic acid anion. It is a conjugate base of a 2-O-[alpha-D-mannopyranosyl-(1->2)-alpha-D-glucopyranosyl]-3-O-phospho-D-glyceric acid.
(2R)-2-[(2R,3R,4S,5S,6R)-4,5-dihydroxy-6-(hydroxymethyl)-3-[(2R,3S,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxy-3-phosphonatooxypropanoate