The molecule is a 1,2-diacyl-sn-glycero-3-phospho-(1'-sn-glycerol) where the acyl groups at positions 1 and 2 are stearoyl and arachidonoyl respectively. It derives from an octadecanoic acid and an arachidonic acid. It is a conjugate acid of a 1-stearoyl-2-arachidonoyl-sn-glycero-3-phospho-(1'-sn-glycerol)(1-).
[(2R)-1-[[(2S)-2,3-dihydroxypropoxy]-hydroxyphosphoryl]oxy-3-octadecanoyloxypropan-2-yl] (5Z,8Z,11Z,14Z)-icosa-5,8,11,14-tetraenoate