Used as a building block in pharmaceutical synthesis, particularly in the development of active pharmaceutical ingredients (APIs) where piperazine derivatives are needed for their biological activity. Commonly employed in the creation of central nervous system agents, including antidepressants and antipsychotics, due to its ability to modulate receptor binding. Also utilized in agrochemicals for the synthesis of crop protection agents. Its stereochemistry (cis/trans mixture) allows for exploration of structure-activity relationships during drug discovery. Frequently used in research laboratories for the preparation of complex heterocyclic compounds.