Used as a building block in organic synthesis, particularly in the preparation of pharmaceuticals and agrochemicals. Its alkyne functionality allows participation in coupling reactions such as Sonogashira and Glaser couplings, enabling the construction of complex aromatic and conjugated systems. Also employed in the development of specialty polymers and fluorescent dyes due to its aromatic structure and reactivity. Its derivatives show potential in materials science for organic semiconductors and optoelectronic devices.