Cycloheptylmethyl methanesulfonate is primarily used in organic synthesis as an alkylating agent. It facilitates the introduction of the cycloheptylmethyl group into various molecules, which is valuable in the development of pharmaceuticals and complex organic compounds. Its application is particularly significant in the synthesis of intermediates for drug discovery, where modifying molecular structures can enhance biological activity or optimize pharmacokinetic properties. Additionally, it serves as a reagent in research laboratories for studying reaction mechanisms and exploring new synthetic pathways.