preferred_name: alpha-Neup5Ac-(2->6)-beta-D-Galp-(1->4)-beta-D-GlcpNAc-(1->2)-[alpha-Neup5Ac-(2->6)-beta-D-Galp-(1->4)-beta-D-GlcpNAc-(1->4)]-alpha-D-Manp-(1->3)-beta-D-Manp-(1->4)-beta-D-GlcpNAc-(1->4)-D-GlcpNAc-yl group