Used as a key intermediate in the synthesis of organic semiconductors and optoelectronic materials. Its rigid aromatic structure and ability to coordinate with metal ions make it suitable for applications in organic light-emitting diodes (OLEDs) and dye-sensitized solar cells (DSSCs). The compound’s carboxylic acid groups allow for functionalization or anchoring to metal oxide surfaces, enhancing electron transport in photovoltaic devices. Also explored in the development of luminescent sensors due to its fluorescence properties and metal-ion binding capability.