Used as a silylating agent in organic synthesis, particularly in the protection of sensitive functional groups during multi-step reactions. Its bulky diisopropylsilyl group provides steric shielding, making it effective for selective protection of alcohols and heterocyclic compounds. Commonly employed in pharmaceutical synthesis where controlled reactivity and stability are required. Also utilized in the preparation of advanced intermediates for agrochemicals and functional materials due to its compatibility with various reaction conditions.