This chemical is primarily used in organic synthesis as a versatile building block for creating more complex molecules. Its ethynyl group allows for coupling reactions, such as Sonogashira coupling, which is widely employed in the synthesis of pharmaceuticals, agrochemicals, and advanced materials. The methanesulfonyl group enhances reactivity, making it useful in nucleophilic substitution reactions. It is also utilized in the development of polymers and electronic materials, particularly in the creation of conductive or semiconductive compounds. Additionally, it finds application in medicinal chemistry for the design of drug candidates, especially those targeting specific biological pathways.