Clinical data
Routes of
ATC code none
Legal status
Legal status
  • Uncontrolled
CAS Number 31729-24-5
PubChem (CID) 208921
ChemSpider 181017
UNII 78G92X9EH7 YesY
Chemical and physical data
Formula C16H21ClN4
Molar mass 304.82 g/mol
3D model (Jmol) Interactive image

Enpiprazole (INN, BAN) is an anxiolytic drug of the phenylpiperazine group that was never marketed.[1][2] It produces anxiolytic-like effects in animals, though these effects appear to be biphasic and may reverse at high doses.[3] It is known to produce ortho-chlorophenylpiperazine (o-cPP) as a metabolite.[4]

See also


  1. J. Elks (14 November 2014). The Dictionary of Drugs: Chemical Data: Chemical Data, Structures and Bibliographies. Springer. pp. 488–. ISBN 978-1-4757-2085-3.
  2. Bernan, British Pharmacopoeia Commission (2002). British Approved Names 2002. United Kingdom: The Stationery Office. p. 359. ISBN 0-11-322558-X.
  3. Murasaki M, Hara T, Oguchi T, Inami M, Ikeda Y (September 1976). "Action of enpiprazole on emotional behavior induced by hypothalamic stimulation in rats and cats". Psychopharmacology. 49 (3): 271–4. doi:10.1007/BF00426829. PMID 12526.
  4. B.L. Goodwin (10 November 2004). Handbook of Biotransformations of Aromatic Compounds. CRC Press. pp. 3–. ISBN 978-0-203-64196-5.

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