Used as a key intermediate in organic synthesis, particularly in the preparation of complex molecules requiring selective alkyne functionalization. Its trimethylsilyl group stabilizes the terminal alkyne, making it suitable for Sonogashira coupling reactions, which are widely employed in pharmaceutical and agrochemical industries to form carbon-carbon bonds. The chloroalkyne moiety allows further derivatization, enabling the construction of conjugated systems found in bioactive compounds and functional materials. Commonly applied in research settings for the synthesis of natural products and specialty chemicals where controlled reactivity and protection of the alkyne are essential.