Used as an intermediate in pharmaceutical synthesis, particularly in the development of active pharmaceutical ingredients (APIs) where piperazine derivatives are key structural components. Its BOC-protected amine group allows for selective deprotection and further functionalization, making it valuable in multi-step organic synthesis. Commonly employed in the production of drugs targeting central nervous system disorders, antimicrobials, and kinase inhibitors in medicinal chemistry research. Also utilized in the preparation of novel compounds for structure-activity relationship (SAR) studies due to the stability and modifiability of the methylpiperazine core.