Used as a key intermediate in the synthesis of organic semiconductors and fluorescent materials. Its extended π-conjugated structure makes it suitable for applications in optoelectronic devices such as organic light-emitting diodes (OLEDs) and sensors. The compound exhibits strong fluorescence, which is exploited in the development of chemosensors for detecting metal ions or biological molecules. Additionally, its ability to form stable charge-transfer complexes supports its use in photovoltaic cells and dye-sensitized solar cells. The carboxylic acid group allows for easy functionalization and attachment to surfaces or polymers, enhancing its utility in material science and biosensor platforms.