Used primarily as a photolabile protecting group reagent in organic synthesis, especially in the development of light-responsive molecules. Its key application lies in the controlled release of biologically active compounds upon exposure to UV or visible light, making it valuable in drug delivery systems and biochemical research. It is commonly employed to protect functional groups such as alcohols, amines, and carboxylic acids during multi-step syntheses, allowing selective deprotection with light without affecting other sensitive parts of the molecule. This property is exploited in the design of caged compounds for studying dynamic biological processes with high temporal and spatial precision. Also used in photolithography and the fabrication of biosensors where light-triggered activation is required.