Used in organic synthesis as an intermediate for pharmaceuticals and agrochemicals, particularly in the development of bioactive molecules. Its ethynyl group enables click chemistry reactions, making it valuable in medicinal chemistry for constructing complex structures via coupling reactions. The trimethylsilyl group enhances stability and solubility during synthesis, while the ester and amino functionalities allow further derivatization. Commonly employed in the preparation of conjugated materials for optoelectronics and in the synthesis of receptor ligands for biological research.