[alpha-?-GalpA2N-(1->6)-[alpha-D-GlcpN-(1->4)-beta-?-Glcp-(1->4)]-[alpha-D-GlcpN-(1->7)-alpha-D-GlcpA-(1->2)-L-gro-alpha-D-manHepp-(1->3)]-L-gro-alpha-D-manHepp-(1->5)]-alpha-L-3-deoxy-manOct2ulop4PEtn-onic(2->