The molecule is a nucleotide-sugar oxoanion obtained by deprotonation of the diphosphate OH groups of GDP-6-deoxy-alpha-D-altrose; major species at pH 7.3. It is a conjugate base of a GDP-6-deoxy-alpha-D-altrose.
[[(2R,3S,4R,5R)-5-(2-amino-6-oxo-1H-purin-9-yl)-3,4-dihydroxyoxolan-2-yl]methoxy-oxidophosphoryl] [(2R,3S,4R,5S,6R)-3,4,5-trihydroxy-6-methyloxan-2-yl] phosphate