Used as an intermediate in organic synthesis, particularly in the preparation of pharmaceuticals and agrochemicals. Its alkyne functionality allows for participation in click chemistry reactions, such as copper-catalyzed azide-alkyne cycloaddition (CuAAC), making it valuable in drug discovery and bioconjugation. The methoxybenzene moiety can act as a directing group or stabilizing unit in various coupling reactions. It is also employed in the development of liquid crystals and functional materials due to its rigid aromatic structure and reactive side chain.