The molecule is dianion of 4-CDP-2-C-methyl-D-erythritol arising from deprotonation of the diphosphate OH groups; major species at pH 7.3. It is a conjugate base of a 4-CDP-2-C-methyl-D-erythritol.
[[(2R,3S,4R,5R)-5-(4-amino-2-oxopyrimidin-1-yl)-3,4-dihydroxyoxolan-2-yl]methoxy-oxidophosphoryl] [(2R,3S)-2,3,4-trihydroxy-3-methylbutyl] phosphate