Used as a key intermediate in the synthesis of pharmaceuticals and agrochemicals, particularly in the development of fluorinated organic compounds where the fluorine atom enhances metabolic stability and bioavailability. Its acetylene functionality allows for coupling reactions, such as Sonogashira coupling, enabling the construction of complex aromatic systems in drug discovery. Also employed in materials science for creating conjugated molecules used in organic semiconductors and liquid crystals due to its rigid structure and electronic properties.