Date published: 2026-5-8

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Spiperone (CAS 749-02-0)

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Alternate Names:
8-[4-(4-Fluprophenyl)-4-oxobutyl]-1-phenyl-1,3,8-triazaspiro[4,5]decan-4-one
CAS Number:
749-02-0
Molecular Weight:
395.47
Molecular Formula:
C23H26FN3O2
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Spiperone is a potent antagonist of dopamine D2 receptors and serotonin 5-HT2 receptors, predominantly used in neuroscience research to elucidate the pathways and functions of these neurotransmitters in the brain. Its high affinity for these receptor sites makes it useful for mapping the distribution and density of D2 and 5-HT2 receptors in various regions of the brain using radiolabeled forms in imaging studies. Spiperone also serves as a reference compound in pharmacological studies to investigate the effects of receptor blockade, which can shed light on the underlying mechanisms of neuropsychiatric conditions. Furthermore, its ability to bind selectively to these receptors is exploited in receptor binding assays to screen for potential receptor ligands.


Spiperone (CAS 749-02-0) References

  1. Ketanserin and spiperone as templates for novel serotonin 5-HT(2A) antagonists.  |  Glennon, RA., et al. 2002. Curr Top Med Chem. 2: 539-58. PMID: 12052193
  2. The antipsychotic spiperone attenuates inflammatory response in cultured microglia via the reduction of proinflammatory cytokine expression and nitric oxide production.  |  Zheng, LT., et al. 2008. J Neurochem. 107: 1225-35. PMID: 18786164
  3. Non-competitive interaction between raclopride and spiperone on human D-receptors in intact Chinese hamster ovary cells.  |  Packeu, A., et al. 2010. Fundam Clin Pharmacol. 24: 283-91. PMID: 19909349
  4. Spiperone enhances intracellular calcium level and inhibits the Wnt signaling pathway.  |  Lu, D. and Carson, DA. 2009. BMC Pharmacol. 9: 13. PMID: 19948059
  5. Haloperidol, spiperone, pimozide and aripiprazole reduce intracellular dopamine content in PC12 cells and rat mesencephalic cultures: Implication of inhibition of vesicular transport.  |  Matsuo, T., et al. 2010. Eur J Pharmacol. 640: 68-74. PMID: 20460122
  6. Effect of spiperone on mesenchymal multipotent stromal and hemopoietic stem cells under conditions of pulmonary fibrosis.  |  Skurikhin, EG., et al. 2014. Bull Exp Biol Med. 157: 132-7. PMID: 24913578
  7. Biotinylated-spiperone ligands for quantum dot labeling of the dopamine D2 receptor in live cell cultures.  |  Tomlinson, ID., et al. 2019. Bioorg Med Chem Lett. 29: 959-964. PMID: 30808590
  8. Spiperone: Tritium labelling at high specific activity.  |  Filer, CN., et al. 2019. Appl Radiat Isot. 147: 211-214. PMID: 30999206
  9. Verification of the role of spiperone in the treatment of COPD through bioinformatics analysis.  |  Zhu, D., et al. 2021. Int Immunopharmacol. 101: 108308. PMID: 34741870
  10. 3H-spiperone binding sites in lymphocytes as possible vulnerability marker in schizophrenia.  |  Bondy, B. and Ackenheil, M. 1987. J Psychiatr Res. 21: 521-9. PMID: 3481637
  11. Spiperone Stimulates Regeneration in Pulmonary Endothelium Damaged by Cigarette Smoke and Lipopolysaccharide.  |  Skurikhin, E., et al. 2021. Int J Chron Obstruct Pulmon Dis. 16: 3575-3591. PMID: 35002229
  12. Haloperidol and spiperone potentiate murine splenic B cell proliferation.  |  Liu, Y. and Wolfe, SA. 1996. Immunopharmacology. 34: 147-59. PMID: 8886859
  13. Spiperone: influence of spiro ring substituents on 5-HT2A serotonin receptor binding.  |  Metwally, KA., et al. 1998. J Med Chem. 41: 5084-93. PMID: 9836624

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Spiperone, 250 mg

sc-471047
250 mg
$130.00