Used primarily as a silylating agent in organic synthesis, this compound serves to introduce the benzyl(dimethyl)silyl protecting group, particularly for alcohols and phenols. Its reactivity allows selective protection in complex molecule assembly, enhancing stability during multi-step reactions. The chloromethyl functionality enables further derivatization through nucleophilic substitution, making it valuable in the design of pharmaceutical intermediates and functionalized silanes for materials science. It is also employed in the preparation of crosslinking agents for silicon-based polymers, contributing to improved thermal and mechanical properties in cured resins.