[L-gro-alpha-D-manHep?-(1->6)-[beta-D-Glcp-(1->7)-L-gro-alpha-D-manHep?-(1->4)-[alpha-D-Glcp-(1->6)-alpha-D-Glcp-(1->3)-L-gro-alpha-D-manHep?-(1->3)]-L-gro-D-manHep(?-]]-