The molecule is a 1,2-diacyl-sn-glycero-3-phospho-(1'-sn-glycerol) in which the 1- and 2-acyl groups are specified as hexadecanoyl (palmitoyl) and octadecanoyl (stearoyl) respectively. It is a conjugate acid of a 1-hexadecanoyl-2-octadecanoyl-sn-glycero-3-phospho-(1'-sn-glycerol)(1-).
[(2R)-1-[[(2S)-2,3-dihydroxypropoxy]-hydroxyphosphoryl]oxy-3-hexadecanoyloxypropan-2-yl] octadecanoate