The molecule is an organophosphate oxoanion resulting from deprotonation of the carboxy and phosphate OH groups of alpha-D-FucNAc4-(1->4)-beta-D-ManNAcA-(1->4)-alpha-D-GlcNAc-undecaprenyl diphosphate; major species at pH 7.3. It is an organophosphate oxoanion, a monocarboxylic acid anion and a carbohydrate acid derivative anion. It is a conjugate base of an alpha-D-FucNAc4-(1->4)-beta-D-ManNAcA-(1->4)-D-GlcNAc-undecaprenyl diphosphate.
(2S,3S,4R,5S,6R)-5-acetamido-3-[(2R,3R,4S,5R,6R)-5-acetamido-3,4-dihydroxy-6-methyloxan-2-yl]oxy-6-[(2R,3S,4R,5R,6R)-5-acetamido-4-hydroxy-2-(hydroxymethyl)-6-[oxido-[oxido-[(2Z,6Z,10Z,14Z,18Z,22Z,26Z,30Z,34E,38E)-3,7,11,15,19,23,27,31,35,39,43-undecamethyltetratetraconta-2,6,10,14,18,22,26,30,34,38,42-undecaenoxy]phosphoryl]oxyphosphoryl]oxyoxan-3-yl]oxy-4-hydroxyoxane-2-carboxylate