The molecule is an organophosphate oxoanion obtained by deprotonation of the phosphate and imido groups of riboflavin cyclic-4',5'-phosphate; major species at pH 7.3. It is a conjugate base of a riboflavin cyclic 4',5'-phosphate.
10-[(2S,3S)-2,3-dihydroxy-3-[(4R)-2-oxido-2-oxo-1,3,2lambda5-dioxaphospholan-4-yl]propyl]-7,8-dimethyl-4-oxobenzo[g]pteridin-2-olate