Used as an intermediate in pharmaceutical synthesis, particularly in the production of active pharmaceutical ingredients (APIs) where piperazine derivatives are key structural components. It serves as a building block in the development of drugs targeting central nervous system disorders, antimicrobials, and antiviral agents. Its functional groups allow for easy modification in multi-step organic reactions, making it valuable in medicinal chemistry research and development. Commonly employed in the creation of kinase inhibitors and receptor antagonists due to the favorable pharmacokinetic properties imparted by the methylpiperazine moiety.