Used as a key intermediate in the synthesis of functional organic materials, particularly in the preparation of conjugated polymers and metal-organic frameworks (MOFs). Its dialdehyde functionality allows for condensation reactions with diamines or other nucleophiles to form Schiff bases, enabling the construction of porous, conjugated networks with tunable electronic properties. Commonly employed in the development of fluorescent sensors and optoelectronic materials due to its electron-rich structure and ability to coordinate with metal ions. Also finds use in supramolecular chemistry for designing molecular receptors and host-guest systems.