The molecule is a phosphatidylcholine 42:2 in which the acyl groups specified at positions 1 and 2 are hexadecanoyl and (5Z,9Z)-hexacosadienoyl respectively. It derives from a hexadecanoic acid and a (5Z,9Z)-5,9-hexacosadienoic acid.
[(2R)-2-[(5Z,9Z)-hexacosa-5,9-dienoyl]oxy-3-hexadecanoyloxypropyl] 2-(trimethylazaniumyl)ethyl phosphate