Used as a key intermediate in the synthesis of conjugated porous organic polymers for applications in gas storage and catalysis. Its dual aldehyde functionality allows for Schiff base reactions, enabling the construction of covalent organic frameworks (COFs) with high surface area. Also employed in optoelectronic materials due to its extended π-conjugation, contributing to charge transport properties in organic semiconductors. Additionally, serves as a precursor in sensors for detecting aromatic amines and nitroaromatics through fluorescence quenching mechanisms.