Used primarily in the synthesis of conjugated polymers for organic electronics. It serves as a key monomer in producing light-emitting materials for OLEDs (organic light-emitting diodes), especially blue-emitting devices. Its well-defined hydrocarbon structure enhances thermal stability and improves film-forming properties in polymer-based semiconductors. Also employed in the development of organic photovoltaics (OPVs) and field-effect transistors (OFETs) due to its favorable charge transport characteristics. The aldehyde functional groups allow for easy incorporation into larger π-conjugated systems via palladium-catalyzed coupling reactions.