beta-D-Galp-(1->4)-[alpha-L-Fucp-(1->3)]-beta-D-GlcpNAc-(1->3)-beta-D-Galp-(1->4)-[alpha-L-Fucp-(1->3)]-beta-D-GlcpNAc-OR
beta-d-galp-(1->4)-[alpha-l-fucp-(1->3)]-beta-d-glcpnac-(1->3)-beta-d-galp-(1->4)-[alpha-l-fucp-(1->3)]-beta-d-glcpnac-or
Any glycoside derived from dimeric Lewis X {β-<small>D</small>-Gal<em>p</em>-(1→4)-[α-<small>L</small>-Fuc<em>p</em>-(1→3)]-β-<small>D</small>-Glc<em>p</em>NAc-(1→3)-β-<small>D</small>-Gal<em>p</em>-(1→4)-[α-<small>L</small>-Fuc<em>p</em>-(1→3)]-β-<small>D</small>-Glc<em>p</em>NAc}.