Used primarily as an intermediate in organic synthesis, particularly in the preparation of protected amino compounds for peptide and pharmaceutical synthesis. Its sulfonate group acts as a good leaving group, enabling efficient alkylation or displacement reactions. The Boc-protected amine allows for selective deprotection under mild acidic conditions, making it valuable in multi-step syntheses where controlled reactivity is required. Commonly employed in the development of active pharmaceutical ingredients (APIs) and functionalized polymers.