The molecule is a phosphatidylcholine O-38:0 in which the alkyl and acyl groups (located at positions 1 and 2 respectively) are octadecyl and icosanoyl. It is a phosphatidylcholine O-38:0 and a 2-acyl-1-alkyl-sn-glycero-3-phosphocholine. It derives from an icosanoic acid.
[(2R)-2-icosanoyloxy-3-octadecoxypropyl] 2-(trimethylazaniumyl)ethyl phosphate