Used as a fluorescent probe in biochemical and materials science applications due to its strong emission under UV light. Its conjugated structure allows for integration into organic semiconductors and optoelectronic devices such as OLEDs. Also serves as a building block in synthesizing photoresponsive polymers and sensors. The carboxylic acid group enables covalent attachment to surfaces or biomolecules, making it useful in labeling and detection systems. Shows potential in photodynamic therapy research owing to its ability to generate singlet oxygen upon irradiation.