Used in the synthesis of metal-organic frameworks (MOFs) due to its ability to act as a bridging ligand, forming porous materials with potential applications in gas storage, separation, and catalysis. The pyridyl and carboxylic acid functional groups enable coordination with various metal ions, enhancing structural diversity and stability. Also explored in the development of luminescent sensors and functional materials for detecting small molecules or metal ions. Its rigid aromatic backbone supports the formation of extended networks with tunable pore sizes and surface areas.