Neu5Ac(a2-6),Gal(b1-4)GlcNAc(b1-2)Man(a1-3)GlcNAc(b1-4)[Gal(b1-4)GlcNAc(b1-2)Man(a1-6)]Man(b1-4)GlcNAc(b1-4)GlcNAc(b1-