NPS 2143 hydrochloride

Cat. No. 3626

NPS 2143 hydrochloride C24H25ClNO2.HCl [324523-20-8]

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Chemical Name: 2-Chloro-6-[(2R)-3-[[1,1-dimethyl-2-(2-naphthalenyl)ethyl]amino-2-hydroxypropoxy]benzonitrile hydrochloride

Biological Activity

Selective Ca2+-sensing receptor antagonist. Blocks increases in cytoplasmic Ca2+ concentrations elicited by human Ca2+ receptors expressed in HEK293 cells (IC50 = 43 nM). Also stimulates parathyroid hormone secretion from bovine parathyroid cells (EC50 = 41 nM). Orally active calcilytic compound.

Technical Data

Soluble to 100 mM in DMSO and to 10 mM in ethanol
>99 %
Desiccate at RT

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.
All Tocris products are intended for laboratory research use only.

Certificate of Analysis / Safety Data Sheet

Certificate of Analysis: View current batch
Safety Data Sheet: View Safety Data Sheet


Nemeth et al (2001) Calcilytic compounds: potent and selective Ca2+ receptor antagonists that stimulate secretion of parathyroid hormone. J.Pharmacol.Exp.Ther. 299 323. PMID: 11561095.

Nemeth (2002) The search for calcium receptor antagonists (calcilytics). J.Mol.Endocrinol. 29 15. PMID: 12200226.

Huang and Breitwieser (2007) Rescue of calcium-sensing receptor mutants by allosteric modulators reveals a conformational checkpoint in receptor biogenesis. J.Biol.Chem. 282 9517. PMID: 17284438.

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Keywords: NPS 2143 hydrochloride, supplier, calcium, Ca2+, sensing, receptors, CaSR, antagonists, orally, active, calcilytics, NPS2143, Calcium-Sensing Receptor Antagonists

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