Used as a silylating agent in organic synthesis, particularly for the protection of hydroxyl groups during multi-step reactions. Its primary application lies in modifying phenolic or alcoholic functionalities to enhance volatility and stability, making it valuable in analytical chemistry, especially in gas chromatography (GC) and mass spectrometry (MS) sample preparation. The chlorophenoxy group provides moderate electron-withdrawing properties, which can influence the reactivity and selectivity in certain coupling reactions. It is also employed in the synthesis of silane-based coupling agents for surface modification of inorganic materials, improving compatibility in composite systems.