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