Gro(a1-5)Gro(a2-4)[Rha(a1-2)Rha(a1-2)Rha(a1-3)Rha(a1-3)GlcNAc(b1-3)Glc(a1-3)Gro(a1-3)[Glc(b1-4)]Gro(a1-5)]Kdo(a2-6)GlcN(b1-6)GlcN