Used primarily as a photolabile protecting group in organic synthesis, enabling controlled release of carboxylic acids, phosphates, and other functional groups upon exposure to light. Its application is prominent in the development of light-triggered drug delivery systems and in the synthesis of complex biomolecules where selective deprotection is required. The electron-withdrawing trifluoromethyl group enhances the efficiency of photolysis, making it effective even at longer wavelengths. Also employed in photochemical studies and the preparation of photoresponsive materials.