?-D-GlcpA2N-(1->?)-?-D-QuipNAc4NAc-(1->?)-?-D-GlcpA2N-(1->?)-?-D-QuipNAc4NAc-(1->?)-D-gro-?-D-manHepp-(1->?)-D-gro-?-D-manHepp-(1->?)-D-gro-?-D-manHepp-(1->?)-D-Kdn(?->