This compound is primarily used in peptide synthesis as a protected form of cysteine. The Boc (tert-butoxycarbonyl) group protects the amino group, while the Acm (acetamidomethyl) group protects the thiol side chain of cysteine. This dual protection allows for selective deprotection during the synthesis process, ensuring the integrity of the peptide chain. It is particularly useful in solid-phase peptide synthesis (SPPS) where controlled and sequential addition of amino acids is required. The compound is also employed in the preparation of complex peptides and proteins, especially those involving disulfide bond formation, which is critical for the structural stability and biological activity of many peptides. Its application extends to the development of pharmaceuticals, including peptide-based drugs and therapeutic agents.