[3)-beta-D-QuipNAc4NAc-(1->3)-beta-D-GlcpNAmA-(1->]n
[3)-beta-d-quipnac4nac-(1->3)-beta-d-glcpnama-(1->]n
A polysaccharide derivative composed of repeating disaccharide units, consisting of (1→3)-linked residues of 2,4-diacetamido-2,4-dideoxy-β-<small>D</small>-quinovose (2,4-diacetamido-2,4,6-trideoxy-β-<small>D</small>-glucose, bacillosamine) and 2-acetimidoylamino-2-deoxy-beta-D-glucuronic acid.