The molecule is an organophosphate oxoanion obtained by deprotonation of the phosphate OH groups of D-ribofuranose-2,5-bisphosphate; major species at pH 7.3. It is a conjugate base of a D-ribofuranose-2,5-bisphosphate.
[(3R,4R,5R)-2,4-dihydroxy-5-(phosphonatooxymethyl)oxolan-3-yl] phosphate