The molecule is a 1-phosphatidyl-1D-myo-inositol 3-phosphate(3-) arising from deprotonation of all three free phosphate OH groups of 1,2-dioctanoyl-sn-glycero-3-phospho-(1'-D-myo-inositol-3'-phosphate); major species at pH 7.3. It is a conjugate base of a 1,2-dioctanoyl-sn-glycero-3-phospho-(1D-myo-inositol-3'-phosphate).
[(1R,2R,3S,4R,5S,6S)-3-[[(2R)-2,3-di(octanoyloxy)propoxy]-oxidophosphoryl]oxy-2,4,5,6-tetrahydroxycyclohexyl] phosphate