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Class IA antiarrythmic; reduces both Na+ and K+ channel currents, including INa, IKr and IKs. Prolongs QT and induces torsade de pointes (TdP).
|Storage||Store at -20°C|
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 324.42. 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||3.08 mL||15.41 mL||30.82 mL|
|5 mM||0.62 mL||3.08 mL||6.16 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 biological activity of the product.
Caballero et al (2003) Effects of fleca. and q.dine on Kv4.2 currents: voltage dependence and role of S6 valines. Br.J.Pharmacol. 138 1475 PMID: 12721103
Borggrefe et al (2005) Short QT syndrome genotype-genotype correlations. J.Electrocardiol. 38 75 PMID: 16226079
Wu et al (2008) Role of late sodium current in modulating the proarrhythmic and antiarrhythmic effects of q.dine Heart Rhythm. 5 1726 PMID: 19084812
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Keywords: Quinidine, Quinidine supplier, sodium, Na+, potassium, K+, channel, blockers, IKr, IKs, IK1, IK-ATP, Ito, INa, antiarrhythmic, class, 1A, torsade, de, pointes, prolongs, qt, interval, Other, Channel, Modulators, 4108, Tocris Bioscience
2 Citations for Quinidine
Citations are publications that use Tocris products. Selected citations for Quinidine include:
Kim et al (2016) Targeting cancer metabolism by simultaneously disrupting parallel nutrient access pathways. J Clin Invest 126 4088 PMID: 27669461
He et al (2017) Downregulation of miR-7116-5p in microglia by MPP+ sensitizes TNF-α production to induce dopaminergic neuron damage. Glia 65 1251 PMID: 28543680
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Reviews for Quinidine
Average Rating: 5 (Based on 2 Reviews.)
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Excellent for blocking organic cation transport at 50 uM in rat aorta. However also acts as non-competitive antagonist of alpha-1 adrenoceptors. This is evidenced by the fact it can block vasoconstrictor responses induced by the alpha-1 adrenoceptor agonist phenylephrine in a non-competitive manner.