Used in organic synthesis as a building block for more complex molecules, particularly in pharmaceutical research. It serves as a key intermediate in the development of compounds with potential biological activity, such as enzyme inhibitors or receptor modulators. The ethynyl group allows for further functionalization through click chemistry, making it valuable in drug discovery. The fluorine atom enhances the molecule's stability and can influence its interaction with biological targets, improving drug efficacy. Additionally, it is employed in material science for creating specialized polymers or coatings with unique properties.