The molecule is a nucleotide-sugar oxoanion obtained by deprotonation of the carboxy and diphosphate OH groups of UDP-N-acetyl-D-mannosaminouronic acid. It is a conjugate base of an UDP-N-acetyl-D-mannosaminouronic acid.
(2S,3S,4R,5S)-5-acetamido-6-[[[(2R,3S,4R,5R)-5-(2,4-dioxopyrimidin-1-yl)-3,4-dihydroxyoxolan-2-yl]methoxy-oxidophosphoryl]oxy-oxidophosphoryl]oxy-3,4-dihydroxyoxane-2-carboxylate