Used primarily in peptide synthesis as a protecting group for cysteine residues. It helps prevent unwanted side reactions during the formation of peptide bonds. The acetamidomethyl group is stable under acidic and basic conditions, making it suitable for various synthetic procedures. After the peptide chain is assembled, the protecting group can be removed under mild conditions, restoring the free thiol group of cysteine. This compound is particularly valuable in the production of complex peptides and proteins for research and pharmaceutical applications.