The molecule is an organophosphate oxoanion resulting from the deprotonation of the carboxy group and the phosphate OH groups of 1-phospho-alpha-D-galacturonic acid. The major species at pH 7.3. It is an organophosphate oxoanion, a carbohydrate acid derivative anion and a monocarboxylic acid anion. It is a conjugate base of a 1-phospho-alpha-D-galacturonic acid.
(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-phosphonatooxyoxane-2-carboxylate