2,4-Dihydro-2-[(1S,2S)-1-ethyl-2-hydroxypropyl]-4[4-(1-piperazinyl)phenyl]-3H-1,2,4-triazol-3-one-d4 is derived from N-Benzylpiperazine-d8 Dihydrochloride (B288612), which is a controlled substance and piperazine used as reference materials for forensic laboratories. They affect the central and the autonomic nervous systems, the blood pressure and smooth muscle.