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