The molecule is an anionic phospholipid obtained by deprotonation of both phosphate OH groups of 3-heptaprenyl-sn-glycero-1-phosphate; major species at pH 7.3. It is a conjugate base of a 3-heptaprenyl-sn-glycero-1-phosphate.
[(2S)-3-[(2E,6E,10E,14E,18E,22E)-3,7,11,15,19,23,27-heptamethyloctacosa-2,6,10,14,18,22,26-heptaenoxy]-2-hydroxypropyl] phosphate