Used as a key intermediate in the synthesis of fluorescent dyes and optical brighteners due to its strong luminescent properties. Commonly employed in the development of OLED materials for display technologies, where it contributes to efficient electron transport and light emission. Also utilized in the preparation of specialty polymers with enhanced thermal and oxidative stability. Plays a role in the manufacture of agrochemicals and pharmaceuticals, serving as a building block for heterocyclic compounds with biological activity. Its rigid aromatic structure makes it suitable for sensors and molecular recognition systems.