[6)-[alpha-Neup5Ac-(2->6)-beta-D-GalpNAc-(1->4)-beta-D-GlcpNAc-(1->3)]-beta-D-Galp-(1->3)-beta-D-Galp-(1->4)-beta-D-Glcp-(1->]n
[6)-[alpha-neup5ac-(2->6)-beta-d-galpnac-(1->4)-beta-d-glcpnac-(1->3)]-beta-d-galp-(1->3)-beta-d-galp-(1->4)-beta-d-glcp-(1->]n
A polysaccharide derivative with a repeating unit consisting of β-<small>D</small>-galactosyl, β-<small>D</small>-galactosyl and β-<small>D</small>-glucosyl residues linked sequentially (1→3) and (1→4), to the galactosyl residue at the non-reducing end of which is attached an <em>N</em>-acetyl-α-neuraminyl-(2→6)-<em>N</em>-acetyl-β-<small>D</small>-galactosaminyl-(1→4)-<em>N</em>-acetyl-β-<small>D</small>-glucosaminyl trisaccharide unit via a (1→3) linkage, with all repeating units being linked (1→6). Capsular polysaccharide of <em>Streptococcus suis</em> serotype 1.