Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of active pharmaceutical ingredients (APIs) where protection of functional groups is required. The benzyloxycarbonyl (Cbz) group serves as a protecting group for amines, allowing selective reaction at other sites in the molecule during multi-step syntheses. The methanesulfonate (mesylate) group acts as a good leaving group, facilitating nucleophilic substitution reactions. This compound is especially valuable in the preparation of substituted piperidines, which are common structural motifs in drugs targeting central nervous system disorders, including antidepressants, antipsychotics, and analgesics. Its reactivity and stability profile make it suitable for use in controlled, stepwise organic transformations in medicinal chemistry.