Used as a key ligand in coordination chemistry to form stable complexes with metal ions, enabling applications in catalysis, material science, and molecular electronics. It plays a significant role in the development of supramolecular structures and metal-organic frameworks (MOFs). In photochemistry, it assists in creating light-harvesting systems and sensors due to its ability to modulate electronic properties. It is also utilized in the synthesis of polymers and nanomaterials, enhancing their functional characteristics for advanced technologies. Additionally, it serves as a reagent for the spectrophotometric determination of metals such as Ag, Fe, and Ru.