Used primarily in the synthesis of advanced porous materials such as covalent organic frameworks (COFs). Its multiple aldehyde functional groups enable strong covalent bonding with amine or other nucleophilic linkers, facilitating the construction of highly ordered, rigid 3D networks. These frameworks are exploited in gas storage, particularly for hydrogen and carbon dioxide, due to their high surface area and tunable pore size. Also applied in catalysis as a support scaffold for immobilizing metal nanoparticles, enhancing catalytic efficiency and recyclability. Additionally, shows promise in sensing applications and organic electronics, where its conjugated aromatic system provides detectable optical responses upon interaction with specific analytes or enables efficient charge transport.