The molecule is a quadruply-charged organophosphate oxoanion obtained via deprotonation of the phosphate OH groups of D-glucose 1,6-bisphosphate; major species at pH 7.3. It is a conjugate base of a D-glucose 1,6-bisphosphate.
[(2R,3S,4R,5R)-3,4,5-trihydroxy-1-oxo-6-phosphonatooxyhexan-2-yl] phosphate