Used in organic semiconductor materials, particularly in the development of OLED (organic light-emitting diode) devices. Acts as an electron-transporting or emissive layer component due to its conjugated structure and thermal stability. Also employed as an intermediate in synthesizing fluorescent dyes and sensors for metal ion detection. Shows potential in photovoltaic cells as a ligand in metal-organic complexes for enhanced charge separation. Its carboxylic and ester groups allow for further functionalization, enabling integration into polymers or surface binding in thin-film applications.