Blocker of the slow delayed rectifier K+ current (IKs) (IC50 = 1-10 μM). Also blocks the CFTR chloride current (ICFTR) (IC50 = 19 μM). (-)-[3R,4S]-Chromanol 293B (Cat. No. 1475) also available.
|Storage||Store 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.
|Solvent||Max Conc. mg/mL||Max Conc. mM|
Preparing Stock Solutions
The following data is based on the product molecular weight 324.39. 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||3.08 mL||15.41 mL||30.83 mL|
|5 mM||0.62 mL||3.08 mL||6.17 mL|
|10 mM||0.31 mL||1.54 mL||3.08 mL|
|50 mM||0.06 mL||0.31 mL||0.62 mL|
References are publications that support the products' biological activity.
Bachmann et al (2001) Chromanol 293B, a blocker of the slow delayed rectifier K+ current (IKS), inhibits the CFTR Cl- current. Naunyn Schmiedebergs Arch.Pharmacol. 363 590 PMID: 11414653
Fujisawa et al (2000) Time-dependent block of the slowly activating delayed rectifier K+ current by chromanol 293B in guinea-pig ventricular cells. Br.J.Pharmacol. 129 1007 PMID: 10696102
Sun et al (2001) Chromanol 293B inhibits slowly activating delayed rectifier and transient outward currents in canine left ventricular myocytes. J.Cardiovasc.Electrophysiol. 12 472 PMID: 11332571
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Keywords: Chromanol 293B, supplier, IKs, blockers, blocks, ICFTR, Potassium, KV, Channels, voltage-gated, voltage-dependent, K+, Cl-, chloride, Chromanol293B, Voltage-Gated, Potassium, Channels, CFTR, Voltage-Gated, Potassium, Channels, Tocris Bioscience
2 Citations for Chromanol 293B
Citations are publications that use Tocris products. Selected citations for Chromanol 293B include:
Yu et al (2014) Apamin does not inhibit human cardiac Na+ current, L-type Ca2+ current or other major K+ currents. J Cell Mol Med 9 e96691 PMID: 24798465
McCallum et al (2011) The contribution of Kv7 channels to pregnant mouse and human myometrial contractility. Mol Pain 15 577 PMID: 20132415
Do you know of a great paper that uses Chromanol 293B from Tocris? If so please let us know.
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