Used primarily as a ligand in coordination chemistry to form complexes with transition metals, enhancing catalytic activity in various organic reactions. It is also employed in the synthesis of supramolecular structures and metal-organic frameworks (MOFs) due to its ability to bind metal ions selectively. In material science, it serves as a precursor for creating functionalized polymers and coatings with specific electronic or optical properties. Additionally, it is utilized in the development of sensors and probes for detecting metal ions or small molecules in analytical chemistry. Its aldehyde group allows for further chemical modifications, making it versatile in designing new compounds for research and industrial applications.