[2)-alpha-D-Galp-(1->3)-[alpha-L-Fucp-(1->2)]-beta-D-Galp-(1->3)-alpha-D-GalpNAc-(1->3)-alpha-D-GalpNAc-(1->]n
[2)-alpha-d-galp-(1->3)-[alpha-l-fucp-(1->2)]-beta-d-galp-(1->3)-alpha-d-galpnac-(1->3)-alpha-d-galpnac-(1->]n
A polysaccharide derivative composed of a backbone of α-<small>D</small>-Gal-(1→3)-[α-<small>L</small>-Fuc-(1→2)]-β-<small>D</small>-Gal-(1→3)-α-<small>D</small>-GalNAc-(1→3)-<small>D</small>-GalNAc branched pentasaccharide repeating units that are joined to each other via α(1→2)-linkages; corresponds to the O-antigen repeat unit structure of <em>E. coli</em> O86:B7.