Used as a key intermediate in the synthesis of pharmaceuticals and agrochemicals, particularly in reactions involving palladium-catalyzed cross-coupling such as Sonogashira and Suzuki couplings. Its ethynyl and bromo functional groups allow for selective modifications, making it valuable in building complex organic molecules. Commonly employed in the development of fluorinated bioactive compounds due to the electron-withdrawing trifluoromethyl group enhancing metabolic stability and lipophilicity. Also applied in materials science for constructing conjugated systems in organic electronics.