2,2'-Bipyridine-5,5'-dicarboxylic acid is widely used in coordination chemistry as a versatile ligand due to its ability to form stable complexes with various metal ions. Its applications include the development of metal-organic frameworks (MOFs), which are utilized for gas storage, separation, and catalysis. The compound is also employed in the synthesis of luminescent materials, where it enhances the photophysical properties of metal complexes for use in sensors and light-emitting devices. Additionally, it serves as a building block in supramolecular chemistry for constructing complex molecular architectures. In analytical chemistry, it is used as a chelating agent for the detection and quantification of metal ions. Its role in catalysis is significant, particularly in oxidation and reduction reactions, making it valuable in industrial processes and environmental remediation.