Quetiapine Impurity (N,N-bis[(2-phenylthio)phenyl]-1,4-piperazinedicarboxamide)

N1,N4-Bis[2-(phenylthio)phenyl]-1,4-piperazinedicarboxamide is an impurity of Quetiapine (Q510000), a benzothiazepine with mixed serotonin and dopamine receptor antagonistic properties; used as an antipsychotic.