[P-4)-alpha-D-GlcpNAc-(1-P-4)-alpha-D-GlcpNAc-(1-P-4)-alpha-D-GlcpNAc-(1-P-4)-alpha-D-GlcpNAc-(1-P-4)-alpha-D-GlcpNAc-(1-P-4)-alpha-D-GlcpNAc-(1-]
[p-4)-alpha-d-glcpnac-(1-p-4)-alpha-d-glcpnac-(1-p-4)-alpha-d-glcpnac-(1-p-4)-alpha-d-glcpnac-(1-p-4)-alpha-d-glcpnac-(1-p-4)-alpha-d-glcpnac-(1-]
A phosphate-linked oligosaccharide analogue consisting of six α-<em>N</em>-acetyl-<small>D</small>-glucosaminyl residues, joined by (1→4)-phosphodiester linkages. It is a constituent 6-repeating-unit segment of <em>Neisseria meningitidis</em> serogroup X capsular polysaccharide (MenX), the structural diagram of which shows parts of phosphodiester linkages which are present at both the reducing and non-reducing ends of the hexasaccharide unit.