The molecule is a 1-(alk-1Z-enyl)-sn-glycero-3-phospho-(N-acyl)ethanolamine(1-) obtained by deprotonation of the phosphate OH group of 1-(1Z-octadecenyl)-sn-glycero-3-phospho-(N-arachidonoyl)ethanolamine; major species at pH 7.3. It is a conjugate base of a 1-(1Z-octadecenyl)-sn-glycero-3-phospho-(N-arachidonoyl)ethanolamine.
[(2R)-2-hydroxy-3-[(Z)-octadec-1-enoxy]propyl] 2-[[(5Z,8Z,11Z,14Z)-icosa-5,8,11,14-tetraenoyl]amino]ethyl phosphate