Date published: 2026-4-24

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4-Chloro-DL-phenylalanine (CAS 7424-00-2)

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Alternate Names:
Fenclonine; PCPA
Application:
4-Chloro-DL-phenylalanine is an irreversible tryptophan hydroxylase inhibitor
CAS Number:
7424-00-2
Molecular Weight:
199.63
Molecular Formula:
C9H10ClNO2
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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4-Chloro-DL-phenylalanine is an irreversible tryptophan hydroxylase inhibitor that depletes serotonin in the brain. 4-Chloro-DL-phenylalanine is an artificially produced compound that is derived from the alkaloid fenclonine, naturally occurring in plants of the Erythrina genus. In scientific research, 4-Chloro-DL-phenylalanine has been utilized extensively in laboratory experiments, particularly in vitro studies. These investigations have focused on examining its impact on cell cultures and exploring potential effects on gene expression.


4-Chloro-DL-phenylalanine (CAS 7424-00-2) References

  1. Anxiolytic effect of serotonin depletion in the novelty-induced hypophagia test.  |  Bechtholt, AJ., et al. 2007. Psychopharmacology (Berl). 190: 531-40. PMID: 17165096
  2. Persistent gut motor dysfunction in a murine model of T-cell-induced enteropathy.  |  Mizutani, T., et al. 2010. Neurogastroenterol Motil. 22: 196-203, e65. PMID: 19735478
  3. Ex vivo evaluation of the serotonin 1A receptor partial agonist [³H]CUMI-101 in awake rats.  |  Palner, M., et al. 2011. Synapse. 65: 715-23. PMID: 21108237
  4. 4-Chloro-DL-phenylalanine protects against monocrotaline‑induced pulmonary vascular remodeling and lung inflammation.  |  Bai, Y., et al. 2014. Int J Mol Med. 33: 373-82. PMID: 24337018
  5. Molecular structure, vibrational spectra, NBO, UV and first order hyperpolarizability, analysis of 4-Chloro-dl-phenylalanine by density functional theory.  |  Govindarasu, K. and Kavitha, E. 2014. Spectrochim Acta A Mol Biomol Spectrosc. 133: 799-810. PMID: 25000567
  6. The protective effects of PCPA against monocrotaline-induced pulmonary arterial hypertension are mediated through the downregulation of NFAT-1 and NF-κB.  |  Bai, Y., et al. 2017. Int J Mol Med. 40: 155-163. PMID: 28560440
  7. PCPA protects against monocrotaline-induced pulmonary arterial remodeling in rats: potential roles of connective tissue growth factor.  |  Bai, Y., et al. 2017. Oncotarget. 8: 111642-111655. PMID: 29340081
  8. Effects of Thryptophan Hydroxylase Blockade by P-Chlorophenylalanine on Contextual Memory Reconsolidation after Training of Different Intensity.  |  Deryabina, IB., et al. 2020. Int J Mol Sci. 21: PMID: 32197439
  9. Sub-chronic vortioxetine (but not escitalopram) normalizes brain rhythm alterations and memory deficits induced by serotonin depletion in rats.  |  Riga, MS., et al. 2020. Neuropharmacology. 178: 108238. PMID: 32750446
  10. Pharmacological Modulation of Serotonin Levels in Zebrafish Larvae: Lessons for Identifying Environmental Neurotoxicants Targeting the Serotonergic System.  |  Faria, M., et al. 2021. Toxics. 9: PMID: 34070577
  11. Overproduction of Gastrointestinal 5-HT Promotes Colitis-Associated Colorectal Cancer Progression via Enhancing NLRP3 Inflammasome Activation.  |  Li, T., et al. 2021. Cancer Immunol Res. 9: 1008-1023. PMID: 34285037
  12. Pharmacological Modulation of Behaviour, Serotonin and Dopamine Levels in Daphnia magna Exposed to the Monoamine Oxidase Inhibitor Deprenyl.  |  Bellot, M., et al. 2021. Toxics. 9: PMID: 34437505
  13. Regular Aerobic Exercise Attenuates Pain and Anxiety in Mice by Restoring Serotonin-Modulated Synaptic Plasticity in the Anterior Cingulate Cortex.  |  Zhou, YS., et al. 2022. Med Sci Sports Exerc. 54: 566-581. PMID: 34935710

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

4-Chloro-DL-phenylalanine, 5 g

sc-397804
5 g
$97.00