Used as a key intermediate in organic synthesis, particularly in the preparation of conjugated organic materials for optoelectronic devices. It serves as a building block in the synthesis of fluorescent dyes and luminescent polymers due to its extended π-conjugation system. Its aldehyde functional groups allow for easy modification via condensation or reduction reactions, making it valuable in developing sensors, organic semiconductors, and nonlinear optical materials. Also employed in the fabrication of metal-organic frameworks (MOFs) where its rigid structure contributes to framework stability and porosity.