The molecule is an organophosphate oxoanion obtained by deprotonation of the phospho and sulfo groups of 5'-phosphopyridoxal-6-azobenzene-2,4-disulfonic acid. It is an organophosphate oxoanion and an organosulfonate oxoanion. It is a conjugate base of a 5'-phosphopyridoxal-6-azobenzene-2,4-disulfonic acid.
4-[[4-formyl-5-hydroxy-6-methyl-3-(phosphonatooxymethyl)pyridin-2-yl]diazenyl]benzene-1,3-disulfonate