The molecule is a 2-acyl-1-alkyl-sn-glycero-3-phosphoethanolamine zwitterion in which the alkyl and the acyl groups at positions 1 and 2 are hexadecyl and acetyl respectively; major species at pH 7.3. It is a tautomer of a 1-hexadecyl-2-acetyl-sn-glycero-3-phosphoethanolamine.
[(2R)-2-acetyloxy-3-hexadecoxypropyl] 2-azaniumylethyl phosphate