The molecule is a 1-phosphatidyl-1D-myo-inositol 3,4,5-trisphosphate(7-) in which the phosphatidyl acyl groups at positions 1 and 2 are both specified as hexadecanoyl (palmitoyl). It is a conjugate base of a 1,2-dihexadecanoyl-sn-glycero-3-phospho-(1D-myo-inositol-3,4,5-trisphosphate).
[(1S,2S,4S,5R)-3-[[(2R)-2,3-di(hexadecanoyloxy)propoxy]-oxidophosphoryl]oxy-2,4-dihydroxy-5,6-diphosphonatooxycyclohexyl] phosphate