[4)-?-D-GlcpA-(1->4)-?-D-GlcpA-(1->4)-?-D-Glcp-(1->4)[?-D-Galp-(1->3)-?-D-Glcp-(1->4)-?-D-Glcp-(1->4)-?-D-Glcp-(1->6)]-?-D-Glcp-(1->]n