Used as a key intermediate in the synthesis of organosilicon compounds, particularly in the production of silicone polymers with specialized properties. It serves in surface modification processes, providing water repellency and adhesion promotion in coatings, sealants, and resins. Commonly employed in the manufacturing of coupling agents that enhance the interface between organic and inorganic materials, especially in composites and fillers. Its reactive chloro groups allow for further functionalization, making it valuable in custom silane synthesis for industrial and research applications.