Z-ARG(BOC)2-OH CHA is primarily used in peptide synthesis as a protected arginine derivative. The BOC (tert-butoxycarbonyl) groups protect the amine functionalities during the synthesis process, preventing unwanted side reactions. This compound is particularly valuable in solid-phase peptide synthesis (SPPS), where it ensures the selective formation of peptide bonds. After the peptide chain is assembled, the BOC groups can be removed under acidic conditions, revealing the free amino groups for further reactions. Its application is crucial in the production of complex peptides and proteins for research, pharmaceuticals, and biotechnology.