A β-D-glucose ligand equipped with an azide handle through a hydrophilic PEG3 spacer. The terminal azide couples to alkynes via copper-catalyzed azide-alkyne cycloaddition (CuAAC) or to DBCO and related strained alkynes via copper-free click chemistry, forming stable 1,2,3-triazole linkages. This compound provides a β-D-glucose building block for glycoconjugate synthesis, glycomimetic research, and the construction of probes for glucose-recognizing proteins and lectins.