Used as a key building block in the synthesis of metal-organic frameworks (MOFs), particularly for applications in gas storage and separation due to its ability to form stable coordination networks with metal ions. Its carboxylic acid groups enable strong binding with metal nodes, enhancing framework stability. Also employed in the development of luminescent sensors, where the pyridine and aromatic components contribute to selective detection of specific ions or small molecules. Additionally, it serves as a linker in porous materials for catalysis and drug delivery systems, benefiting from its rigid structure and functional versatility.