This chemical is widely used in peptide synthesis as a protecting group for lysine residues. It helps to prevent unwanted reactions at the lysine side chain during the peptide assembly process. The tosyl group provides stability under various reaction conditions, while the Boc group can be selectively removed under mild acidic conditions, allowing for further modifications. This makes it a valuable tool in the production of complex peptides for research, pharmaceuticals, and biotechnology applications. Its compatibility with solid-phase peptide synthesis (SPPS) enhances its utility in creating high-purity peptides efficiently.