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Submit ReviewNS 1738
Description: Positive allosteric modulator of α7 nAChRs; active in vivo
Chemical Name: N-(5-Chloro-2-hydroxyphenyl)-N'-[2-chloro-5-(trifluoromethyl)phenyl]urea
Purity: ≥98% (HPLC)
Biological Activity for NS 1738
NS 1738 is a selective positive allosteric modulator of α7 nicotinic acetylcholine receptors. Exhibits no substantial activity for α4β2, α3β3 and α1-containing receptors. Displays cognitive-enhancing properties in vivo.
Compound Libraries for NS 1738
NS 1738 is also offered as part of the Tocriscreen 2.0 Max. Find out more about compound libraries available from Tocris.
Technical Data for NS 1738
| M. Wt | 365.13 |
| Formula | C14H9Cl2F3N2O2 |
| Storage | Store at RT |
| Purity | ≥98% (HPLC) |
| CAS Number | 501684-93-1 |
| PubChem ID | 310378 |
| InChI Key | OUDXRNQPVSMGDW-UHFFFAOYSA-N |
| Smiles | O=C(NC2=CC(C(F)(F)F)=CC=C2Cl)NC1=C(O)C=CC(Cl)=C1 |
The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.
Tocris products are intended for laboratory research use only, unless stated otherwise.
Solubility Data for NS 1738
| Solvent | Max Conc. mg/mL | Max Conc. mM | |
|---|---|---|---|
| Solubility | |||
| DMSO | 36.51 | 100 | |
| ethanol | 36.51 | 100 |
Preparing Stock Solutions for NS 1738
The following data is based on the product molecular weight 365.13. Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.
| Concentration / Solvent Volume / Mass | 1 mg | 5 mg | 10 mg |
|---|---|---|---|
| 1 mM | 2.74 mL | 13.69 mL | 27.39 mL |
| 5 mM | 0.55 mL | 2.74 mL | 5.48 mL |
| 10 mM | 0.27 mL | 1.37 mL | 2.74 mL |
| 50 mM | 0.05 mL | 0.27 mL | 0.55 mL |
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Product Datasheets for NS 1738
References for NS 1738
References are publications that support the biological activity of the product.
Timmermann et al (2007) An allosteric modulator of the α7 nicotinic acetylcholine receptor possessing cognition-enhancing properties in vivo. J.Pharmacol.Exp.Ther. 323 294 PMID: 17625074
Freitas et al (2013) The antinociceptive effects of nicotinic receptors α7-positive allosteric modulators in murine acute and tonic pain models. J.Pharmacol.Exp.Ther. 344 264 PMID: 23115222
If you know of a relevant reference for NS 1738, please let us know.
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Keywords: NS 1738, NS 1738 supplier, Positive, allosteric, modulators, α7, alpha7, a7, nAChR, active, vivo, Nicotinic, Receptors, Acetylcholine, NS1738, PAM, (a7), 2995, Tocris Bioscience
3 Citations for NS 1738
Citations are publications that use Tocris products. Selected citations for NS 1738 include:
Chatzidaki et al (2015) Pharmacological Characterisation of Nicotinic Acetylcholine Receptors Expressed in Human iPSC-Derived Neurons. Neuropharmacology 10 e0125116 PMID: 25906356
Chatzidaki et al (2015) The influence of allosteric modulators and transmembrane mutations on desensitisation and activation of α7 nicotinic acetylcholine receptors. Int J Oncol 97 75 PMID: 25998276
Bali et al (2019) Facilitation and inhibition of firing activity and N-methyl-D-aspartate-evoked responses of CA1 hippocampal pyramidal cells by alpha7 nicotinic acetylcholine receptor selective compounds in vivo. Sci Rep 9 9324 PMID: 31249369
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Literature in this Area
Tocris offers the following scientific literature in this area to showcase our products. We invite you to request* your copy today!
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