The molecule is an organophosphate oxoanion that is the dianion of N-(5'-phosphopyridoxyl)-L-alanine having anionic carboxy, hydroxy and phosphate groups with the secondary amino group and pyridine nitrogen protonated. It has a role as an epitope and an antigen. It is a conjugate base of a N-(5'-phosphopyridoxyl)-L-alanine.
(2S)-2-[[3-hydroxy-2-methyl-5-(phosphonatooxymethyl)pyridin-4-yl]methylazaniumyl]propanoate