?-D-GlcpA-(1->?)-?-D-GlcpN2S-(1->?)-?-D-IdopA2S-(1->?)-?-D-GlcpN2S-(1->?)-?-D-IdopA2S-(1->?)-?-D-GlcpN2S-(1->?)-?-D-IdopA2S-(1->?)-?-D-GlcpN2S-(1->?)-?-D-IdopA2S-(1->?)-?-D-GlcpN2S-(1->?)-?-D-IdopA2S-(1->?)-?-D-GlcpN2S-(1->?)-?-D-IdopA-(1->?)-D-GlcNAc(?->