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Nifekalant hydrochloride (MS-551)

This product is for research use only, not for human use. We do not sell to patients.

Nifekalant hydrochloride (MS-551)
For small sizes, please check our retail website as below: www.invivochem.com
Size Price Stock
100mg$400To Be Confirmed
250mg$750To Be Confirmed
500mg$1125To Be Confirmed

Cat #: V41791 CAS #: 130656-51-8 Purity ≥ 99%

Description: Nifekalant hydrochloride (MS-551) is an IKr potassium channel blocker belonging to the class III antiarrhythmic agent with an IC50 of 10 µM.

References: Ioannis N Pantazopoulos, et al. Nifekalant in the treatment of life-threatening ventricular tachyarrhythmias. World J Cardiol. 2011 Jun 26;3(6):169-76.

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Molecular Weight (MW)441.913
Molecular FormulaC19H28ClN5O5
CAS No.130656-51-8
SMILES Code O=C1N(C)C(C=C(NCCN(CCO)CCCC2=CC=C([N+]([O-])=O)C=C2)N1C)=O.[H]Cl
Synonyms MS551; MS-551
ProtocolIn VitroNifekalant interacts with the cardiac M2 and the peripheral M3 receptors with a Ki value of 27 and 74 mM, respectively. Nifekalant dose dependently blocks HERG channels with an IC50 value of 7.9 mM, but Nifekalant does not block minK currents in the Xenopus oocyte expression system. Nifekalant blocks HERG channels mainly in their open state in a frequency dependent manner. As a pure K+ channel blocker, Nifekalant does not have negative inotropic effects which amiodarone has via a β-blocking action and does not affect cardiac conduction
These protocols are for reference only. InvivoChem does not independently validate these methods.
Preparing Stock Solutions
Solvent volume to be added Mass (the weight of a compound)
Mother liquor concentration 1mg5mg10mg20mg
1mM2.2629 mL11.3144 mL22.6289 mL45.2578 mL
5mM0.4526 mL2.2629 mL4.5258 mL9.0516 mL
10mM0.2263 mL1.1314 mL2.2629 mL4.5258 mL
20mM0.1131 mL0.5657 mL1.1314 mL2.2629 mL
The molarity calculator equation
Mass(g) = Concentration(mol/L) × Volume(L) × Molecular Weight(g/mol)
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Volume
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Molecular Weight*
The dilution calculator equation
Concentration(start) × Volume(start) = Concentration(final) × Volume(final)

This equation is commonly abbreviated as: C1 V1 = C2 V2

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Step One: Enter information below
Dosage mg/kg Average weight of animals g Dosing volume per animal µL Number of animals
Step Two: Enter the in vivo formulation
%DMSO + % + %Tween 80 + %ddH2O

Calculation Results:
Working concentration: mg/ml;
Method for preparing DMSO master liquid: mg drug pre-dissolved in µL DMSO(Master liquid concentration mg/mL) ,Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.
Method for preparing in vivo formulation: Take µL DMSO master liquid, next add µL PEG300, mix and clarify, next add µL Tween 80,mix and clarify, next add µL ddH2O,mix and clarify.
Note:
  • (1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
  • (2) Be sure to add the solvent(s) in order.