Date published: 2026-4-24

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Talnetant (CAS 174636-32-9)

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Alternate Names:
3-Hydroxy-2-phenyl-N-[(1S)-1-phenylpropyl]-4-quinolinecarboxamide; SB 223412
CAS Number:
174636-32-9
Molecular Weight:
382.45
Molecular Formula:
C25H22N2O2
Supplemental Information:
This is classified as a Dangerous Good for transport and may be subject to additional shipping charges.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Talnetant is an investigational compound that has been the focus of numerous studies due to its role as a selective antagonist at the NK3 receptor, a type of neurokinin receptor. This compound has provided researchers with a tool to delve into the function of tachykinin peptides, which are involved in a wide range of CNS activities. In behavioral studies, talnetant helps to elucidate the neurochemical pathways that underpin stress responses, potentially influencing the design of new studies into stress-related disorders. Additionally, its interaction with the NK3 receptor has been useful in neurophysiological research to understand the modulation of neurotransmitter release in the brain. The compound has also been used in endocrinological studies to explore the impact of NK3 receptor pathways on the release of hormones, such as those involved in the regulation of the hypothalamic-pituitary-gonadal axis.


Talnetant (CAS 174636-32-9) References

  1. Neurokinin NK1 and NK3 receptors as targets for drugs to treat gastrointestinal motility disorders and pain.  |  Sanger, GJ. 2004. Br J Pharmacol. 141: 1303-12. PMID: 15023866
  2. Effect of neurokinins on canine prostate cell physiology.  |  Walden, PD., et al. 2005. Prostate. 63: 358-68. PMID: 15611996
  3. Talnetant GlaxoSmithKline.  |  Evangelista, S. 2005. Curr Opin Investig Drugs. 6: 717-21. PMID: 16044668
  4. Defensive and pathological functions of the gastrointestinal NK3 receptor.  |  Sanger, GJ., et al. 2006. Vascul Pharmacol. 45: 215-20. PMID: 16901762
  5. Neurokinin-3 receptor-specific antagonists talnetant and osanetant show distinct mode of action in cellular Ca2+ mobilization but display similar binding kinetics and identical mechanism of binding in ligand cross-competition.  |  Tian, G., et al. 2007. Mol Pharmacol. 71: 902-11. PMID: 17172464
  6. Modulation of peristalsis by NK3 receptor antagonism in guinea-pig isolated ileum is revealed as intraluminal pressure is raised.  |  Sanger, GJ., et al. 2007. Auton Autacoid Pharmacol. 27: 105-11. PMID: 17391280
  7. In vitro and in vivo characterization of the non-peptide NK3 receptor antagonist SB-223412 (talnetant): potential therapeutic utility in the treatment of schizophrenia.  |  Dawson, LA., et al. 2008. Neuropsychopharmacology. 33: 1642-52. PMID: 17728699
  8. Pharmacological analysis of components of the change in transmural potential difference evoked by distension of rat proximal small intestine in vivo.  |  Larsson, MH., et al. 2008. Am J Physiol Gastrointest Liver Physiol. 294: G165-73. PMID: 17975133
  9. Augmentation of antipsychotic-induced neurochemical changes by the NK3 receptor antagonist talnetant (SB-223412).  |  de la Flor, R. and Dawson, LA. 2009. Neuropharmacology. 56: 342-9. PMID: 18822303
  10. The tachykinin NK3 receptor agonist senktide induces locomotor activity in male Mongolian gerbils.  |  Nordquist, RE., et al. 2008. Eur J Pharmacol. 600: 87-92. PMID: 18930726
  11. Pharmacological characterization of senktide-induced tail whips.  |  Nordquist, RE., et al. 2010. Neuropharmacology. 58: 259-67. PMID: 19540857
  12. Identification of a critical residue in the transmembrane domain 2 of tachykinin neurokinin 3 receptor affecting the dissociation kinetics and antagonism mode of osanetant (SR 142801) and piperidine-based structures.  |  Malherbe, P., et al. 2009. J Med Chem. 52: 7103-12. PMID: 19817444
  13. Virtual screening to identify novel antagonists for the G protein-coupled NK3 receptor.  |  Geldenhuys, WJ., et al. 2010. J Med Chem. 53: 8080-8. PMID: 21047106
  14. Mapping the binding pocket of a novel, high-affinity, slow dissociating tachykinin NK3 receptor antagonist: biochemical and electrophysiological characterization.  |  Malherbe, P., et al. 2014. Neuropharmacology. 86: 259-72. PMID: 25107588
  15. Development of novel NK3 receptor antagonists with reduced environmental impact.  |  Yamamoto, K., et al. 2016. Bioorg Med Chem. 24: 3494-500. PMID: 27298001

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Talnetant, 1 g

sc-475043
1 g
$393.00