Description: KV11.1 (hERG) and KV4.3 channel activator; antiarrhythmic
Chemical Name:N-[4-Bromo-2-(1H-tetrazol-5-yl-phenyl]-N'-[3-(trifluoromethyl)phenyl]-urea
Purity: ≥99% (HPLC)
Biological Activity
Technical Data
Solubility
Calculators
Datasheets
References
Biological Activity
KV11.1 (hERG) and KV4.3 channel activator. Activates the IKr and Ito currents and displays antiarrhythmic activity. May also act as a partial blocker of KV11.1 channels. Displays selectivity over the key cardiac potassium channels, KV7.1 (KCNQ1) and KV1.5. Suitable for both in vitro and in vivo use.
Compound Libraries
NS 3623 is also offered as part of the
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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.
Solubility Data
Solvent
Max Conc. mg/mL
Max Conc. mM
Solubility
DMSO
42.72
100
Preparing Stock Solutions
The following data is based on the product molecular weight 427.18. Batch specific molecular weights may vary from batch to batch due to solvent 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
2.34 mL
11.7 mL
23.41 mL
5 mM
0.47 mL
2.34 mL
4.68 mL
10 mM
0.23 mL
1.17 mL
2.34 mL
50 mM
0.05 mL
0.23 mL
0.47 mL
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Product Datasheets
Certificate of Analysis / Product Datasheet
Safety Datasheet
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References
References are publications that support the products' biological activity.
Hansenet al (2006) Biophysical characterization of the new human ether-a-go-go-related gene channel opener NS3623 [N-(4-bromo-2-(1H-tetrazol-5-yl)-phenyl)-N'-(3'-trifluoromethylphenyl)urea]. Mol.Pharmacol. 70 1319 PMID: 16825484
George
(2009) Restoring repolarization in LQT3. Heart Rhythm. 6 107 PMID: 19121809
Hansenet al (2007) Pharmacological activation of rapid delayed rectifier potassium current suppresses bradycardia-induced triggered activity in the isolated guinea pig heart. J.Pharmacol.Exp.Ther. 321 996 PMID: 17325228
Calloeet al (2016) A dual potassium channel activator improves repolarization reserve and normalizes ventricular action potentials. Biochem.Pharmacol. 108 36 PMID: 27002181