Kdo(a2-4)GalA(b1-3)GlcNAc(b1-6)GlcN(a1-4)GalA(a1-3)[GalA(b1-7)Gro(a1-7)]Gro(a1-3)[Glc(b1-4)]Gro(a1-5)[Ara(b1-8)]Kdo(a2-6)GlcN(b1-6)GlcN(b1-