Hexadecyl trimethyl ammonium bromide
Synonym(s):Cetrimonium bromide;Cetyltrimethylammonium bromide;CTAB;Hexadecyltrimethylammonium bromide;Palmityltrimethylammonium bromide
- CAS NO.:57-09-0
- Empirical Formula: C19H42BrN
- Molecular Weight: 364.45
- MDL number: MFCD00011772
- EINECS: 200-311-3
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-05-09 17:53:44
What is Hexadecyl trimethyl ammonium bromide?
Description
Cetyltrimethylammonium bromide (CTAB), sometimes called cetrimonium bromide, is a quaternary ammonium salt with surface-active and antiseptic properties. It was mentioned in the chemical literature as early as 1936, when G. S. Hartley*, B. Collie, and C. S. Samis at University College London studied transport numbers of paraffin-chain salts in aqueous solutions.
In 1946, R. S. Shelton and co-workers at the William S. Merrell Company1 (Cincinnati) reported a synthesis of CTAB from cetyl (hexadecyl) bromide and trimethylamine. They prepared CTAB and several other compounds during a study of the efficacy of quaternary ammonium salts as what they termed “germicides”.
Today, in addition to its use as a topical antiseptic, CTAB has applications in medicine as an apoptosis-promoting anticancer agent, and in protein electrophoresis, DNA extraction buffer systems, and nanoparticle synthesis. In a report this month, Jonathan Boltersdorf, Taylor J. Woehl, and coauthors at the University of Maryland (College Park), the Army Research Laboratories (Adelphi, MD), General Technical Services (Wall Township, NJ), and the Naval Surface Warfare Center (Crane, IN) used CTAB as a surfactant in their examination of silver photodeposition onto gold nanorods.
1. After a long series of mergers and acquisitions, William S. Merrell is now part of Sanofi.
The Uses of Hexadecyl trimethyl ammonium bromide
antiinfectant
What are the applications of Application
Cetyltrimethylammonium Bromide is a cationic detergent used in the isolation of high molecular weight DNA
Properties of Hexadecyl trimethyl ammonium bromide
Melting point: | 248-251 °C(lit.) |
Density | 1.1107 (rough estimate) |
Flash point: | 244 °C |
storage temp. | Store below +30°C. |
solubility | H2O: 50 mg/mL |
form | powder |
appearance | white crystals or powder |
color | white |
Odor | Odorless |
Water Solubility | 13 g/L (20 ºC) |
Sensitive | Hygroscopic |
Safety information for Hexadecyl trimethyl ammonium bromide
Signal word | Danger |
Pictogram(s) |
Corrosion Corrosives GHS05 Exclamation Mark Irritant GHS07 Health Hazard GHS08 Environment GHS09 |
GHS Hazard Statements |
H302:Acute toxicity,oral H315:Skin corrosion/irritation H318:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation H373:Specific target organ toxicity, repeated exposure H410:Hazardous to the aquatic environment, long-term hazard |
Precautionary Statement Codes |
P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P314:Get medical advice/attention if you feel unwell. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for Hexadecyl trimethyl ammonium bromide
InChIKey | LZZYPRNAOMGNLH-UHFFFAOYSA-M |
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