[beta-D-Glcp-(1->4)-[L-gro-alpha-D-manHepp-(1->7)-[alpha-D-Rhap-(1->2)-L-gro-alpha-D-manHepp-(1->3)]-L-gro-alpha-D-manHepp-(1->5)]-D-gro-alpha-D-talOct2ulop-onic-(2->4)-L-3-deoxy-manOct2ulo-onic(?-]-