The molecule is a doubly-charged organophosphate oxoanion resulting from the removal of two protons from the diphosphate group of N-acetyl-D-fucosaminyl undecaprenyl diphosphate; major species at pH 7.3. It is a conjugate base of a N-acetyl-D-fucosaminyl undecaprenyl diphosphate.
[(3R,4R,5R,6R)-3-acetamido-4,5-dihydroxy-6-methyloxan-2-yl] [oxido-[(2Z,6Z,10Z,14Z,18Z,22Z,26Z,30Z,34E,38E)-3,7,11,15,19,23,27,31,35,39,43-undecamethyltetratetraconta-2,6,10,14,18,22,26,30,34,38,42-undecaenoxy]phosphoryl] phosphate