The molecule is a nucleotide-sugar oxoanion obtained by deprotonation of the carboxylic acid and phosphate functions of CMP-3-deoxy-D-glycero-beta-D-galacto-nonulosonic acid; major species at pH 7.3. It is a conjugate base of a CMP-3-deoxy-D-glycero-beta-D-galacto-nonulosonic acid.
(2R,4S,5R,6R)-2-[[(2R,3S,4R,5R)-5-(4-amino-2-oxopyrimidin-1-yl)-3,4-dihydroxyoxolan-2-yl]methoxy-oxidophosphoryl]oxy-4,5-dihydroxy-6-[(1R,2R)-1,2,3-trihydroxypropyl]oxane-2-carboxylate