A LacNAc Type 1 (Galβ1-3GlcNAc) ligand equipped with an azide-functionalized linker through a propyl spacer (3-azidopropyl glycoside). The terminal azide can be covalently coupled to alkyne partners via copper-catalyzed azide-alkyne cycloaddition (CuAAC), or to dibenzocyclooctyne (DBCO) and related strained alkynes using copper-free click chemistry, forming stable 1,2,3-triazole linkages. This compound provides a LacNAc Type 1 (Galβ1-3GlcNAc) building block, a core structure of type 1 chain glycans and the precursor to Lewis a and Lewis b antigens. It is a substrate for sialyltransferases and fucosyltransferases.