The molecule is a 1-alkyl-2-acyl-sn-glycero-3-phosphserine in which the alkyl and acyl groups are specified as (1Z)-octadecenyl and (4Z,7Z,10Z,13Z,16Z,19Z)-docosahexaenoyl respectively. It derives from an all-cis-docosa-4,7,10,13,16,19-hexaenoic acid. It is a conjugate acid of a 1-(1Z-octadecenyl)-2-(4Z,7Z,10Z,13Z,16Z,19Z-docosahexaenoyl)-sn-glycero-3-phosphoserine(1-).
(2S)-2-amino-3-[[(2R)-2-[(4Z,7Z,10Z,13Z,16Z,19Z)-docosa-4,7,10,13,16,19-hexaenoyl]oxy-3-[(Z)-octadec-1-enoxy]propoxy]-hydroxyphosphoryl]oxypropanoic acid