[alpha-D-Glcp-(1->6)-[alpha-D-GlcpN-(1->7)-[alpha-D-Glcp-(1->4)-L-gro-alpha-D-manHepp-(1->4)]-alpha-D-Quip3NAc-(1->3)-alpha-L-Galp-(1->3)-L-gro-alpha-D-manHepp-(1->2)]]-L-gro-alpha-D-manHepp-(1->6)-L-3-deoxy-manOct2ulo-onic(?->