[beta-D-GlcpNAc-(1->3)-beta-L-Gal?-(1->4)-beta-D-Glcp-(1->4)-alpha-D-GlcpNAc-(1->2)-L-gro-alpha-D-manHepp7PEtn-(1->3)-L-gro-alpha-D-manHepp-(1->5)]-alpha-L-3-deoxy-manOct2ulop-onic(2->