Used as a reagent in organic synthesis, particularly in palladium-catalyzed coupling reactions to introduce acetylene groups. It serves as a protected form of acetylene, enabling controlled alkyne incorporation in complex molecule construction, such as natural products and pharmaceuticals. Commonly applied in Sonogashira coupling where its stability and low reactivity under basic conditions allow selective transformations. Also utilized in materials science for synthesizing conjugated polymers and organosilicon-based functional materials due to its thermal stability and volatility, making it suitable for vapor-phase deposition processes.