An α-L-rhamnose ligand equipped with an azide-functionalized linker through a short ethyl spacer. 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 an α-L-rhamnose building block for glycoconjugate synthesis and the construction of probes that exploit naturally occurring anti-rhamnose antibodies, with applications in antibody-recruiting molecule and immunotherapy research.