This compound is primarily used in peptide synthesis, particularly in the production of complex peptides and peptidomimetics. It serves as a protecting group for the thiol function in cysteine analogs, ensuring selective reactions during peptide chain assembly. The Boc group (tert-butoxycarbonyl) provides stability under various reaction conditions, while the pMeBzl (para-methylbenzyl) moiety enhances solubility and handling. The dicyclohexylamine (dcha) salt form improves crystallinity, facilitating purification and isolation processes. This chemical is especially valuable in the synthesis of peptides with disulfide bridges, which are crucial in the structure and function of many bioactive peptides and proteins. Its application extends to the development of pharmaceuticals, including antimicrobial agents, hormone analogs, and enzyme inhibitors.