The molecule is decaanion of 1D-myo-inositol 1,2,4,5,6-pentakisphosphate arising from global deprotonation of the phosphate OH groups; major species at pH 7.3. It is a conjugate base of a 1D-myo-inositol 1,2,4,5,6-pentakisphosphate.
[(1S,2R,4R,5R)-3-hydroxy-2,4,5,6-tetraphosphonatooxycyclohexyl] phosphate