Used as an intermediate in organic synthesis, particularly in the preparation of cyclopropane-containing compounds that are valuable in pharmaceutical development. Its structure allows for ring-opening reactions or functionalization of the nitrile group, enabling the construction of complex molecules. The tosylate group acts as a good leaving group, facilitating nucleophilic substitution reactions under mild conditions. This compound is especially useful in medicinal chemistry for building constrained analogs that can enhance metabolic stability and binding affinity in drug candidates.