The molecule is a phosphatidylcholine 36:1 in which the phosphatidyl acyl groups at positions 1 and 2 are specified as oleoyl and stearoyl respectively. It derives from an oleic acid and an octadecanoic acid.
[(2R)-2-octadecanoyloxy-3-[(Z)-octadec-9-enoyl]oxypropyl] 2-(trimethylazaniumyl)ethyl phosphate