CAS No. 57-09-0
Batch:
Purity:97
Chemical Structure
Check the
Cetrimonium Bromide (CTAB)
product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.
| CAS Number | 57-09-0 | |
|---|---|---|
| Molecular Formula |
C19H42N.Br |
|
| Molecular Weight (MW) | 364.45 | |
| SMILES | CCCCCCCCCCCCCCCC[N+](C)(C)C.[Br-] |
Cetrimonium Bromide (CTAB) is a cationic quaternary ammonium surfactant and broad-spectrum antiseptic agent. It acts primarily by disrupting cell membrane integrity, inducing outer membrane permeabilization, and causing cytoplasmic leakage. These membrane-perturbing actions lead to rapid loss of cell viability, inhibition of bacterial growth, and suppression of cellular metabolic functions across diverse microbial models.
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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 |
|---|---|
| Water | 100 mg/mL |
| Ethanol | 100 mg/mL |
| DMSO |
5 mg/mL
(13.71 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).
Pre-aliquoted for Longevity: Solid-state aliquots offer significantly longer shelf life compared to stock solutions, ensuring maximum stability for every use.
Looking for a specific aliquot size? Reach out to your local sales representative or contact us at orders@selleckchem.com.
- Cetrimonium Bromide (CTAB) Solubility in DMSO
- Cetrimonium Bromide (CTAB) Stock Solution
- Cetrimonium Bromide (CTAB) Storage
- Cetrimonium Bromide (CTAB) Stability
- Cetrimonium Bromide (CTAB) Molecular Weight
- Cetrimonium Bromide (CTAB) SMILES
- Cetrimonium Bromide (CTAB) Chemical Structure (2D and 3D)
- Cetrimonium Bromide (CTAB) SDS｜MSDS
Note: Technical data last updated: Sep 1, 2026.