The molecule is a cardiolipin 72:8(2-) obtained by deprotonation of the phosphate OH groups of tetralinoleoyl cardiolipin; major species at pH 7.3. It is a conjugate base of a tetralinoleoyl cardiolipin.
[3-[[(2R)-2,3-bis[[(9Z,12Z)-octadeca-9,12-dienoyl]oxy]propoxy]-oxidophosphoryl]oxy-2-hydroxypropyl] [(2R)-2,3-bis[[(9Z,12Z)-octadeca-9,12-dienoyl]oxy]propyl] phosphate