Used as a key intermediate in the synthesis of organic semiconductors and fluorescent dyes. Its rigid aromatic structure and functional groups enable strong π-conjugation, making it suitable for optoelectronic applications such as organic light-emitting diodes (OLEDs) and sensors. The carboxylic acid group allows for further chemical modification or attachment to surfaces and polymers, enhancing its utility in material science. Also investigated for use in photovoltaic cells due to its light-absorbing properties and potential for charge transport.