Used as a key building block in the synthesis of organic semiconductors and metal-organic frameworks (MOFs), particularly for optoelectronic applications. Its extended aromatic structure and multiple carboxylic acid groups enable strong coordination with metal ions and facilitate charge transport, making it valuable in dye-sensitized solar cells (DSSCs) and organic light-emitting diodes (OLEDs). Also employed in the development of fluorescent sensors due to its inherent photoluminescent properties and ability to interact with specific analytes through functional group recognition.