Used in organic synthesis as a building block for pharmaceuticals and advanced materials, particularly in Sonogashira coupling reactions to introduce alkyne functionality. Serves as an intermediate in the development of conjugated polymers and organic electronic materials due to the trimethylsilyl-protected alkyne group, which enhances stability and solubility during synthesis. The carboxylic acid group allows for further derivatization, such as esterification or amide formation, enabling integration into complex molecular architectures. Also employed in the preparation of functionalized liquid crystals and sensors where precise molecular design is critical.