The molecule is an organophosphate oxoanion obtained by deprotonation of the phsophate OH groups of alpha-D-ribose 1,2-cyclic phosphate 5-phosphate; major species at pH 7.3. It is a conjugate base of a 5-phospho-alpha-D-ribose cyclic-1,2-phosphate.
[(3aR,5R,6R,6aR)-6-hydroxy-2-oxido-2-oxo-3a,5,6,6a-tetrahydrofuro[2,3-d][1,3,2]dioxaphosphol-5-yl]methyl phosphate