This compound is primarily used in peptide synthesis as a protecting group for cysteine residues. The N-carbobenzoxy group protects the amine functionality, while the S-benzyl group safeguards the thiol side chain of cysteine during the synthesis process. This dual protection ensures that the cysteine residue remains intact and unaffected by reactions targeting other parts of the peptide. It is particularly useful in solid-phase peptide synthesis, where selective deprotection steps are required to build complex peptide structures. Additionally, it finds application in the preparation of cysteine-containing peptides for biochemical and pharmaceutical research, enabling the study of peptide interactions, folding, and function.