The molecule is a 1-phosphatidyl-1D-myo-inositol 5-phosphate(3-) obtained by deprotonation of the phosphate OH groups of 1-stearoyl-2-linoleoyl-sn-glycero-3-phospho-1D-myo-inositol 5-phosphate; major species at pH 7.3. It is a conjugate base of a 1-stearoyl-2-linoleoyl-sn-glycero-3-phospho-1D-myo-inositol 5-phosphate.
[(1S,2R,3R,4R,5R,6R)-2,3,4,6-tetrahydroxy-5-[[(2R)-2-[(9Z,12Z)-octadeca-9,12-dienoyl]oxy-3-octadecanoyloxypropoxy]-oxidophosphoryl]oxycyclohexyl] phosphate