The molecule is a phosphatidylcholine 34:1 in which the 1- and 2-acyl groups are specified as hexadecanoyl (palmitoyl) and 11Z-octadecenoyl (cis-vaccenoyl) respectively. It derives from a cis-vaccenic acid and a hexadecanoic acid.
[(2R)-3-hexadecanoyloxy-2-[(Z)-octadec-11-enoyl]oxypropyl] 2-(trimethylazaniumyl)ethyl phosphate