Used in organic synthesis as an intermediate for pharmaceuticals and functional materials, particularly in Sonogashira coupling reactions to build conjugated systems. Its trimethylsilyl-protected alkyne group allows controlled deprotection and further functionalization, making it valuable in the development of liquid crystals, organic semiconductors, and bioactive molecules. The ester moiety enables further derivatization, such as hydrolysis or amidation, supporting its role in constructing complex aromatic frameworks.