Used primarily in research settings as an intermediate in the synthesis of biologically active compounds, particularly in the development of pharmaceuticals targeting central nervous system disorders. It serves as a building block in creating novel piperazine-based derivatives with potential antipsychotic, antidepressant, or anxiolytic activity. Its biphenyl-piperazine structure is of interest in medicinal chemistry for modulating receptor affinity, especially toward serotonin and dopamine receptors. Also utilized in the preparation of reference standards and metabolites for analytical testing. Not intended for diagnostic or therapeutic use.