Used as a silylating agent in organic synthesis, particularly for the protection of hydroxyl groups in alcohols and phenols. Its bulky isobutyl groups provide steric hindrance, offering selectivity in multifunctional molecules. Commonly employed in the production of silicon-based polymers and as an intermediate in the manufacture of silane coupling agents. Also utilized in surface modification of silica and glass to introduce hydrophobic properties, improving performance in composite materials and chromatographic supports. Plays a role in semiconductor processing as a precursor for silicon-containing thin films via chemical vapor deposition.