The molecule is a phosphatidylethanolamine in which the phosphatidyl acyl group at C-1 and C-2 is stearoyl. It derives from an octadecanoic acid. It is a conjugate base of a 1,2-distearoylphosphatidylethanolaminium. It is a tautomer of a 1,2-distearoylphosphatidylethanolamine zwitterion.
[3-[2-aminoethoxy(hydroxy)phosphoryl]oxy-2-octadecanoyloxypropyl] octadecanoate