phosphatidylcholine (O-18:1/20:4)
phosphatidylcholine (o-18:1/20:4)
A 2-acyl-1-alkyl-<em>sn</em>-glycero-3-phosphocholine in which the acyl group contains 20 carbons and 4 double bonds while the alkyl group contains 18 carbons and 1 double bond.