Used as a key intermediate in organic synthesis, particularly in cross-coupling reactions such as Sonogashira coupling, enabling the formation of conjugated alkynes for pharmaceuticals and agrochemicals. Its trimethylsilyl group stabilizes the alkyne during reaction sequences and can be easily removed to generate terminal alkynes. Frequently employed in the development of liquid crystals, organic semiconductors, and bioactive molecules due to its ability to introduce rigid, hydrophobic aromatic-alkyne frameworks. Also applied in materials science for constructing molecular wires and optoelectronic components.