The molecule is an arenesulfonic acid that is pyridoxal 5'-phosphate carrying an additional 2,4-disulfophenylazo substituent at position 6. It has a role as a purinergic receptor P2X antagonist. It is an arenesulfonic acid, a member of azobenzenes, a member of methylpyridines, a monohydroxypyridine, a pyridinecarbaldehyde and an organic phosphate. It derives from a pyridoxal 5'-phosphate. It is a conjugate acid of a 5'-phosphonatopyridoxal-6-azobenzene-2,4-disulfonate.
4-[[4-formyl-5-hydroxy-6-methyl-3-(phosphonooxymethyl)pyridin-2-yl]diazenyl]benzene-1,3-disulfonic acid