?-L-IdopA-(1→?)-?-D-GalpNAc4S-(1→?)-?-D-GlcpA-(1→?)-?-D-GalpNAc6S-(1→?)-?-?-GlcpA-(1→?)-?-D-Galp-(1→?)-?-D-Galp-(1→?)-?-D-Xyl-ol
