[alpha-D-Rhap-(1->6)-beta-D-GlcpNAc-(1->4)-beta-D-Glcp-(1->3)-beta-L-GalpNAc-(1->3)]-L-gro-alpha-D-manHepp6PyrP-(1->3)-L-gro-alpha-D-manHepp2,4P2-(1->5)-L-3-deoxy-manOct2ulo-onic(?->