Used as an intermediate in pharmaceutical synthesis, particularly in the production of active pharmaceutical ingredients (APIs) that require piperazine moieties. Its protected amine group allows for selective reactions in multi-step organic syntheses, making it valuable in developing drugs such as antibiotics, antivirals, and central nervous system agents. The tert-butyloxycarbonyl (Boc) protection ensures stability during reactions and can be easily removed under mild acidic conditions when needed. Commonly employed in research laboratories and industrial settings for constructing complex drug molecules.