The molecule is a lysophosphatidylcholine 18:1 in which the acyl group is at position 1 is elaidoyl [(9E)-octadec-9-enoyl] and the hydoxy group at position 2 is unsubstituted. It has a role as an epitope.
[(2R)-2-hydroxy-3-[(E)-octadec-9-enoyl]oxypropyl] 2-(trimethylazaniumyl)ethyl phosphate