Used as a monomer in organic electronics, particularly in the synthesis of conjugated polymers for flexible semiconductors and light-emitting diodes (OLEDs). Its rigid aromatic backbone and ethynyl groups enhance electron delocalization, improving charge transport in thin-film transistors. Also employed in supramolecular chemistry to build porous frameworks for gas storage or catalysis due to its linear, rigid structure and ability to undergo Sonogashira coupling reactions.