The molecule is a phosphatidylcholine 38:1 in which the acyl groups specified at positions 1 and 2 are eicosanoyl and (11Z)-octadecenoyl respectively. It derives from an icosanoic acid and a cis-vaccenic acid.
[(2R)-3-icosanoyloxy-2-[(Z)-octadec-11-enoyl]oxypropyl] 2-(trimethylazaniumyl)ethyl phosphate