Neu5Ac(a2-6),Neu5Ac(a2-6),Neu5Ac(a2-6),Neu5Ac(a2-3),Neu5Ac(a2-3),Gal(b1-4)GlcNAc(b1-2)[Gal(b1-4)GlcNAc(b1-4)]Man(a1-?)[Gal(b1-4)GlcNAc(b1-2)[Gal(b1-4)GlcNAc(b1-6)]Man(a1-?)]Man(b1-4)GlcNAc(b1-4)GlcNAc(?1-