Class III antiarrhythmic. Blocks the rapid component of delayed rectifier K+ current (IKr); also blocks hERG channels and L-type Ca2+ channels. Shown to activate a slow inward Na+ current in guinea pig ventricular cells. Used to terminate atrial fibrillation and atrial flutter; can prolong QT.
|Storage||Store at RT|
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.
|Solvent||Max Conc. mg/mL||Max Conc. mM|
Preparing Stock Solutions
The following data is based on the product molecular weight 442.61. 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||2.26 mL||11.3 mL||22.59 mL|
|5 mM||0.45 mL||2.26 mL||4.52 mL|
|10 mM||0.23 mL||1.13 mL||2.26 mL|
|50 mM||0.05 mL||0.23 mL||0.45 mL|
References are publications that support the biological activity of the product.
Merck Index 12 4927
Murray (1998) Ibutilide. Circulation 97 493 PMID: 9490245
Perry et al (2004) Structural determinants of HERG channel block by clofilium and ibutilide. Mol.Pharmacol. 66 240 PMID: 15266014
Lee and Lee (1998) Ionic mechanism of ibutilide in human atrium: evidence for a drug-induced Na+ current through nifedipine inhibited inward channel. J.Pharmacol.Exp.Ther. 286 9 PMID: 9655836
If you know of a relevant reference for Ibutilide hemifumarate, please let us know.
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Keywords: Ibutilide hemifumarate, Ibutilide hemifumarate supplier, antiarrhythmics, ion, channel, blockers, IKr, HERG, L-type, Ca2+, channels, atrial, fibrillation, flutter, Other, Channel, Modulators, 3908, Tocris Bioscience
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Literature in this Area
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New Product Guide (Fall/Winter 2018/2019)New
Our new product guide highlights over 190 new products added to the Tocris Bioscience range during the second half of 2018.
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