Abstract 2-Aminoethyl 3, 6-di-O-sulfo-β-D-glucopyranosyl-(1→ 3)-β-D-galactopyranosyl-(1→ 4)-2-acetamido-2-deoxy-β-D-glucopyranoside, which is the sulfo-mimetic of the antigenic trisaccharide HNK-1, and the corresponding monosulfates, viz., 2-aminoethyl 3-O-sulfo-and 2-aminoethyl 6-O-sulfo-β-D-glucopyranosyl-(1→ 3)-β-D-galactopyranosyl-(1→ 4)-2- acetamido-2-deoxy-β-D-glucopyranosides, were synthesized. 2-Azidoethyl 2, 4-di-O- ...