A lysophosphatidylcholine in which the acyl group contains 20 carbons with 3 double bonds. If R1 is an acyl group and R2 is a hydrogen then the molecule is a 1-acyl-sn-glycero-3-phosphocholine. If R1 is a hydrogen and R2 is an acyl group then the molecule is a 2-acyl-sn-glycero-3-phosphocholine.