Used as an intermediate in organic synthesis, particularly in cross-coupling reactions such as Sonogashira and Suzuki couplings, to construct complex aromatic and conjugated systems. Commonly employed in the development of pharmaceuticals, agrochemicals, and materials for organic electronics like OLEDs and semiconducting polymers. Its structure allows for functionalization of aromatic rings with alkyne groups, enabling the formation of extended π-conjugated frameworks important in optoelectronic applications.