Used primarily as a specialty intermediate in organic synthesis, particularly in the development of pharmaceuticals and agrochemicals. Its alkyne functionality allows for participation in coupling reactions, such as Sonogashira or click chemistry, enabling the construction of complex molecular architectures. The methoxy group stabilizes adjacent charges, making it useful in reactions requiring carbocation or carbanion intermediates. It is also employed in the synthesis of cyclic compounds where ring strain and steric effects influence reactivity. Due to its volatility and reactivity, it is handled under controlled conditions in research and industrial settings.