The molecule is a 1-phosphatidyl-1D-myo-inositol 4,5-bisphosphate(5-) in which the phosphatidyl acyl groups at positions 1 and 2 are both specified as octanoyl. It is a conjugate base of a 1,2-dioctanoyl-sn-glycero-3-phospho-(1D-myo-inositol-4,5-bisphosphate).
[(1R,2S,3R,4R,5S,6R)-3-[[(2R)-2,3-di(octanoyloxy)propoxy]-oxidophosphoryl]oxy-2,4,5-trihydroxy-6-phosphonatooxycyclohexyl] phosphate