Hexadecyltrimethylammonium bromide

PharmaGrade, USP/NF, Manufactured under appropriate controls for pharma or biopharmaceutical production.

CTAB, Cetrimonium bromide, Cetyltrimethylammonium bromide, Palmityltrimethylammonium bromide
Linear Formula:
CAS Number:
Molecular Weight:
Beilstein/REAXYS Number:
EC Number:
MDL number:
PubChem Substance ID:
Pricing and availability is not currently available.

Quality Level



product line





5.0-7 (25 °C, 36.4 g/L)


248-251 °C (lit.)


H2O: soluble 36.4 g/L at 20 °C (completely)

SMILES string




InChI key


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General description

PharmaGrade products are manufactured under appropriate controls for use as a raw material in pharma or biopharmaceutical production. For more information on the PharmaGrade Program, visit
To request the Enhanced Quality Product Documentation for this product, please contact Customer Support and select ‘Product Documentation′. Please note that access to the Enhanced Quality Product Documentation for this product requires a confidentiality disclosure agreement.

Signal Word


Target Organs

Gastrointestinal tract, Respiratory system


UN 3077 9 / PGIII

WGK Germany


Flash Point(F)

471.2 °F - closed cup

Flash Point(C)

244 °C - closed cup

Certificate of Analysis
Certificate of Origin
A T Nasr et al.
Physics in medicine and biology, 60(12), 4685-4704 (2015-05-29)
In this study, recipe optimization of Leuco Crystal Violet (LCV) micelle gels made with the surfactant Cetyl Trimethyl Ammonium Bromide (CTAB) and the chemical sensitizer 2,2,2-trichloroethanol (TCE) was aided by a two-level three-factor designed experiment. The optimized recipe contains 0.75...
Fay-Wei Li et al.
Nature communications, 6, 7852-7852 (2015-07-29)
Phytochromes are red/far-red photoreceptors that play essential roles in diverse plant morphogenetic and physiological responses to light. Despite their functional significance, phytochrome diversity and evolution across photosynthetic eukaryotes remain poorly understood. Using newly available transcriptomic and genomic data we show...
Armando Maestro et al.
Langmuir : the ACS journal of surfaces and colloids, 31(23), 6289-6297 (2015-05-15)
We address the rheology of assemblies of surfactant-decorated silica nanoparticles irreversibly adsorbed at the gas/liquid interface. Positively charged surfactant molecules (such as CTAB) bind to silica nanoparticle surfaces, and the resulting particle-surfactant complexes adsorb at gas/liquid interfaces. The surfactant molecules...
Moritz Tebbe et al.
Faraday discussions, 181, 243-260 (2015-05-08)
We demonstrate the large-scale organisation of anisotropic nanoparticles into linear assemblies displaying optical anisotropy on macroscopic areas. Monodisperse gold nanorods with a hydrophilic protein shell are arranged by dip-coating on wrinkled surfaces and subsequently transferred to indium tin oxide (ITO)...
Carina Hillgruber et al.
The Journal of experimental medicine, 212(8), 1255-1266 (2015-07-15)
Spontaneous organ hemorrhage is the major complication in thrombocytopenia with a potential fatal outcome. However, the exact mechanisms regulating vascular integrity are still unknown. Here, we demonstrate that neutrophils recruited to inflammatory sites are the cellular culprits inducing thrombocytopenic tissue...

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