The molecule is a 1-acyl-2-alkyl-sn-glycero-3-phosphocholine in which the acyl and alkyl groups at positions 1 and 2 are specified respectively as arachidonoyl and palmityl. It is a 1-acyl-2-alkyl-sn-glycero-3-phosphocholine and an arachidonic acid.
[(2R)-2-hexadecoxy-3-[(5Z,8Z,11Z,14Z)-icosa-5,8,11,14-tetraenoyl]oxypropyl] 2-(trimethylazaniumyl)ethyl phosphate