Used in the synthesis of fluorescent dyes and pigments due to its rigid aromatic structure and ability to form stable derivatives. It serves as an intermediate in the production of naphthoylene-based dyes, which are valued in specialty inks and coatings for their brightness and lightfastness. Also employed in the development of organic semiconductors and photoresists in electronic materials. Its anhydride functionality allows for easy incorporation into polymers, enhancing thermal and oxidative stability in high-performance resins. Additionally, it finds use in research for sensor development, particularly in detecting metal ions and small molecules through fluorescence signaling.