The molecule is 1-(alk-1-enyl)-sn-glycero-3-phosphoethanolamine zwitterion in which the alk-1-enyl group is specified as octadec-1-enyl. It is a tautomer of a 1-(octadec-1-enyl)-sn-glycero-3-phosphoethanolamine.
2-azaniumylethyl [(2R)-2-hydroxy-3-octadec-1-enoxypropyl] phosphate