Used as a building block in organic synthesis, particularly in the preparation of conjugated polymers and molecular wires due to its rigid, linear structure and extended π-system. It participates in cycloaddition reactions, such as Diels-Alder, to construct complex aromatic and heterocyclic systems. Also employed in materials science for developing organic semiconductors and optoelectronic devices. Its ability to undergo coupling reactions makes it valuable in synthesizing carbon-rich compounds and nanostructures like graphene nanoribbons.