CAS No. 71-91-0
Batch:
Purity:99
Chemical Structure
Check the
Tetraethylammonium bromide
product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.
| IUPAC Name | tetraethylazanium bromide | |
|---|---|---|
| CAS Number | 71-91-0 | |
| Molecular Formula |
C8H20BrN |
|
| Molecular Weight (MW) | 210.16 | |
| SMILES | CC[N+](CC)(CC)CC.[Br-] | |
| InChIKey | HWCKGOZZJDHMNC-UHFFFAOYSA-M |
Tetraethylammonium bromide is a quaternary ammonium compound that serves as a potassium channel blocker. By releasing tetraethylammonium ions, it inhibits voltage-gated potassium channels, thereby reducing outward potassium currents across cell membranes. This block leads to membrane depolarization, prolonged action potential duration, and alterations in neuronal and muscular excitability in pharmacological and physiological research. [1]
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Concentration
Volume
Mass
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Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
| Solvent | Solubility & Note |
|---|---|
| DMSO |
42 mg/mL
(199.84 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.) |
Q: Why does a DMSO stock precipitate in media/saline?
A: It is caused by unheated aqueous media (supersaturation), local solvent shock, or incorrect mixing sequence.
How to fix it?
- Preheat media/saline to 37°C.
- Mix rapidly (pipette/vortex) upon addition.
- For complex mixes, always add the aqueous phase last.
- Re-dissolve minor precipitates with a 37°C water bath and sonication (≤30 min).
- Tetraethylammonium bromide Solubility in DMSO
- Tetraethylammonium bromide Stock Solution
- Tetraethylammonium bromide Storage
- Tetraethylammonium bromide Stability
- Tetraethylammonium bromide Molecular Weight
- Tetraethylammonium bromide SMILES
- Tetraethylammonium bromide Chemical Structure (2D and 3D)
- Tetraethylammonium bromide SDS｜MSDS
Note: Technical data last updated: Sep 1, 2026.