NS 1738

Name: NS 1738
Brand: Tocris Bioscience
SKU: 2995

Tocris Bioscience, part of Bio-Techne | Catalog # 2995

Citations (25)

COA / SDS

Positive allosteric modulator of α7 nAChRs; active in vivo

Key Product Details

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)
Molecular Weight:	365.13

View Full Technical Details for NS 1738

Technical Data
Citations

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 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

Molarity Calculator

Calculate the mass, volume, or concentration required for a solution.

Mass

Concentration

Volume

M. Wt*

g/mol

*When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and CoA (available online).

Dilution Calculator

Calculate the dilution required to prepare a stock solution.

Concentration 1 (C1)

Volume 1 (V1)

Concentration 2 (C2)

Volume 2 (V2)

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

Volume (to add to vial)

Mass (in vial)

Desired Reconstitution Concentration

References for NS 1738

References are publications that support the biological activity of the product.

Freitas The antinociceptive effects of nicotinic receptors α7-positive allosteric modulators in murine acute and tonic pain models. J.Pharmacol.Exp.Ther. 2013 PMID: 23115222
Timmermann An allosteric modulator of the α7 nicotinic acetylcholine receptor possessing cognition-enhancing properties in vivo. J.Pharmacol.Exp.Ther. 2007 PMID: 17625074