Used as a ligand in coordination chemistry, particularly in the formation of metal complexes with transition metals such as copper, nickel, and zinc. Its structure allows for stable chelation, making it useful in catalysis and in the design of biomimetic compounds. It is also employed in the development of sensors and molecular devices due to its ability to bind metal ions selectively. Additionally, it serves as a building block in supramolecular chemistry for constructing metal-organic frameworks and other functional assemblies.