?-?-Hex?-(1->?),?-?-Hex?NAc-(1->?),alpha-D-NeupAc-(2->?)-beta-D-Galp-(1->?)-beta-D-GlcpNAc-(1->2)-alpha-D-Manp-(1->3)[alpha-D-NeupAc-(2->?)-beta-D-Galp-(1->?)-beta-D-GlcpNAc-(1->2)-alpha-D-Manp-(1->6)]-beta-D-Manp-(1->4)-beta-D-GlcpNAc-(1->4)[alpha-L-Fucp-(1->?)]-?-D-GlcpNAc(1->
