QX 314 bromide

Na+ channel blocker CAS# 24003-58-5

QX 314 bromide

Catalog No. BCC6889----Order now to get a substantial discount!

Product Name & Size Price Stock
QX 314 bromide: 5mg $12 In Stock
QX 314 bromide: 10mg Please Inquire In Stock
QX 314 bromide: 20mg Please Inquire Please Inquire
QX 314 bromide: 50mg Please Inquire Please Inquire
QX 314 bromide: 100mg Please Inquire Please Inquire
QX 314 bromide: 200mg Please Inquire Please Inquire
QX 314 bromide: 500mg Please Inquire Please Inquire
QX 314 bromide: 1000mg Please Inquire Please Inquire
Related Products

Quality Control of QX 314 bromide

Number of papers citing our products

Chemical structure

QX 314 bromide

3D structure

Chemical Properties of QX 314 bromide

Cas No. 24003-58-5 SDF Download SDF
PubChem ID 9884487 Appearance Powder
Formula C16H27N2OBr M.Wt 343.31
Type of Compound N/A Storage Desiccate at -20°C
Solubility Soluble to 100 mM in water
Chemical Name [2-(2,6-dimethylanilino)-2-oxoethyl]-triethylazanium;bromide
SMILES CC[N+](CC)(CC)CC(=O)NC1=C(C=CC=C1C)C.[Br-]
Standard InChIKey DLHMKHREUTXMCH-UHFFFAOYSA-N
Standard InChI InChI=1S/C16H26N2O.BrH/c1-6-18(7-2,8-3)12-15(19)17-16-13(4)10-9-11-14(16)5;/h9-11H,6-8,12H2,1-5H3;1H
General tips For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.
We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months.
Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it.
About Packaging 1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial.
2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial.
3. Try to avoid loss or contamination during the experiment.
Shipping Condition Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request.

Biological Activity of QX 314 bromide

DescriptionMembrane impermeable quaternary derivative of lidocaine, a blocker of voltage-activated Na+ channels. Intracellular QX 314 bromide also inhibits calcium currents in hippocampal CA1 pyramidal neurons.

QX 314 bromide Dilution Calculator

Concentration (start)
x
Volume (start)
=
Concentration (final)
x
Volume (final)
 
 
 
C1
V1
C2
V2

calculate

QX 314 bromide Molarity Calculator

Mass
=
Concentration
x
Volume
x
MW*
 
 
 
g/mol

calculate

Preparing Stock Solutions of QX 314 bromide

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 2.9128 mL 14.5641 mL 29.1282 mL 58.2564 mL 72.8205 mL
5 mM 0.5826 mL 2.9128 mL 5.8256 mL 11.6513 mL 14.5641 mL
10 mM 0.2913 mL 1.4564 mL 2.9128 mL 5.8256 mL 7.282 mL
50 mM 0.0583 mL 0.2913 mL 0.5826 mL 1.1651 mL 1.4564 mL
100 mM 0.0291 mL 0.1456 mL 0.2913 mL 0.5826 mL 0.7282 mL
* Note: If you are in the process of experiment, it's necessary to make the dilution ratios of the samples. The dilution data above is only for reference. Normally, it's can get a better solubility within lower of Concentrations.

Organizitions Citing Our Products recently

 
 
 

Calcutta University

University of Minnesota

University of Maryland School of Medicine

University of Illinois at Chicago

The Ohio State University

University of Zurich

Harvard University

Colorado State University

Auburn University

Yale University

Worcester Polytechnic Institute

Washington State University

Stanford University

University of Leipzig

Universidade da Beira Interior

The Institute of Cancer Research

Heidelberg University

University of Amsterdam

University of Auckland
TsingHua University
TsingHua University
The University of Michigan
The University of Michigan
Miami University
Miami University
DRURY University
DRURY University
Jilin University
Jilin University
Fudan University
Fudan University
Wuhan University
Wuhan University
Sun Yat-sen University
Sun Yat-sen University
Universite de Paris
Universite de Paris
Deemed University
Deemed University
Auckland University
Auckland University
The University of Tokyo
The University of Tokyo
Korea University
Korea University
Featured Products
New Products
 

References on QX 314 bromide

Intracellular QX-314 blocks the hyperpolarization-activated inward current Iq in hippocampal CA1 pyramidal cells.[Pubmed:7760149]

J Neurophysiol. 1995 Feb;73(2):911-5.

1. Whole cell voltage-clamp recordings (access resistance < or = 12 M omega) from CA1 pyramidal cells in the guinea pig hippocampal slice revealed a hyperpolarization-activated inward current with an inward tail upon repolarization. The current activation range extended from approximately -50 mV to -130 mV, with half-activation at -86 mV. This current was identified as the q current (Iq). 2. Intracellular QX-314 (5 or 10 mM), a quaternary derivative of lidocaine, blocked Iq completely throughout its activation range. 3. There is a growing realization that Iq may be responsible for the pacemaker depolarization in cells that display rhythmic calcium spikes. Because QX-314 blocks Iq completely, it could be used to test whether Iq is essential to this oscillatory activity.

QX-314 blocks the potassium but not the sodium-dependent component of the opiate response in locus coeruleus neurons.[Pubmed:8205485]

Brain Res. 1994 Mar 14;639(2):320-4.

Opiates hyperpolarize locus coeruleus neurons by simultaneously opening K+ channels and turning off a resting Na(+)-dependent inward current. Intracellularly applied QX-314 reduced the opiate current to approximately 40% of the control and the residual current did not reverse near EK, suggesting lack of a significant K+ component. Replacement of Na+ virtually abolished the residual opiate response. Thus, QX-314 blocks the K+ but not the Na(+)-dependent component of the opiate-induced outward current in LC neurons.

The inhibition of sodium currents in myelinated nerve by quaternary derivatives of lidocaine.[Pubmed:4541340]

J Gen Physiol. 1973 Jul;62(1):37-57.

The inhibition of sodium currents by quaternary derivatives of lidocaine was studied in single myelinated nerve fibers. Membrane currents were diminished little by external quaternary lidocaine (QX). QX present in the axoplasm (<0.5 mM) inhibited sodium currents by more than 90%. Inhibition occurred as the sum of a constant, tonic phase and a variable, voltage-sensitive phase. The voltage-sensitive inhibition was favored by the application of membrane potential patterns which produce large depolarizations when sodium channels are open. Voltage-sensitive inhibition could be reversed by small depolarizations which opened sodium channels. One explanation of this observation is that QX molecules enter open sodium channels from the axoplasmic side and bind within the channels. The voltage dependence of the inhibition by QX suggests that the drug binds at a site which is about halfway down the electrical gradient from inside to outside of the sodium channel.

Intracellular QX-314 inhibits calcium currents in hippocampal CA1 pyramidal neurons.[Pubmed:8890325]

J Neurophysiol. 1996 Sep;76(3):2120-4.

1. The effects of intracellular QX-314 on Ca2+ currents were examined in CA1 pyramidal cells acutely isolated from rat hippocampus. In neurons dialyzed with 10 mM QX-314 (bromide salt), the amplitude of the high-threshold Ca2+ current was on average 20% of that in control cells and the current-voltage relationships (I-Vs) were shifted in the positive voltage direction. 2. The positive shift in the I-Vs was due to the presence of intracellular Br-, because it was reproduced by 10 mM NaBr and was not present when the chloride salt of QX-314 was used. 3. Low-threshold (T-type) Ca2+ currents, at test voltages of -50 and -40 mV, were on average < 45% of control amplitude in cells containing 10 mM QX-314 (chloride salt) and < 10% of control amplitude in cells with 10 mM QX-314 (bromide salt). 4. In neurons dialyzed with 1 mM QX-314, high-threshold Ca2+ currents were still significantly different from control and Na+ currents were not completely blocked. 5. The proportions of high-threshold Ca2+ current blocked by omega-conotoxin GVIA, omega-agatoxin IVA, and nimodipine were similar in cells dialyzed with 10 mM QX-314 and control cells, indicating that the drug does not selectively inhibit any of the Ca2+ channel subtypes distinguished by these antagonists.

Description

QX-314 bromide is a membrane-impermeable permanently charged sodium channel blocker.

Keywords:

QX 314 bromide,24003-58-5,Natural Products,Sodium Channel, buy QX 314 bromide , QX 314 bromide supplier , purchase QX 314 bromide , QX 314 bromide cost , QX 314 bromide manufacturer , order QX 314 bromide , high purity QX 314 bromide

Online Inquiry for:

      Fill out the information below

      • Size:Qty: - +

      * Required Fields

                                      Result: