Used as a key intermediate in the synthesis of high-performance polymers and fluorescent dyes. Its structure supports the development of nitrogen-rich conjugated systems, making it valuable in organic electronics such as OLEDs and sensors. Commonly employed in the preparation of covalent organic frameworks (COFs) due to its rigid aromatic backbone and reactive amine groups, enabling the construction of porous, stable networks for gas storage or catalysis. Also applied in the fabrication of chemically resistant coatings and advanced optical materials.