The molecule is a nucleotide-sugar oxoanion resulting from the removal of two protons from the diphosphate group of UDP-beta-L-arabinofuranose. It is a conjugate base of an UDP-beta-L-arabinofuranose.
[(2R,3R,4R,5S)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl] [[(2R,3S,4R,5R)-5-(2,4-dioxopyrimidin-1-yl)-3,4-dihydroxyoxolan-2-yl]methoxy-oxidophosphoryl] phosphate