1-palmitoyl-2-oleoyl-sn-glycero-3-phosphoethanolamine, 1-palmitoyl-2-oleoyl-sn-glycero-3-phospho-(10-rac-glycerol) sodium salt, 10,30-bis-[1,2-dioleoyl-sn-glycero-3-phospho]-sn-glycerol (7:2:1)

This is a mixture of lipids to mimic the Gram-negative inner membrane. it consists of POPE, POPG and TOCL (cardiolipin 18:1) in a 7:2:1 molar ratio.