Cetrimonium bromide ∼98% for molecular biology


Synonyms: Cetyltrimethylammonium bromide N-Cetyl-N,N,N-trimethylammonium bromide CTAB Hexadecyltrimethylammonium bromide

0219400491 0219400483 0219400490 0219400480
IC0219400490EA 309.43 USD
IC0219400490 IC0219400491 IC0219400480 IC0219400483
Cetrimonium bromide ∼98% for molecular biology
Cetrimonium bromide

Cetyltrimethylammonium bromide is a phase transfer catalyst ideal for the precipitation of DNA. Hexadecyltrimethylammonium bromide is a bactericidal, cationic detergent. Its activity is neutralized by soaps and anionic detergents (i.e., SDS). Trimethylammonium bromide compounds form insoluble complexes with SDS. It is active at alkaline pH against both Gram positive and Gram negative organisms.

  • Storage temperature: Room Temperature (15 to 30 °C)

Cetyltrimethylammonium bromide ia used as an cationic surfactant suitable for the isolation of high molecular weight DNA in plants and other organisms (by a rapid method) as well as plant DNA for use in PCR analysis. It has been used to precipitate nucleic acids. CTAB provides enhancement of Concanavalin A mediated agglutination. It has been used for the determination of protein molecular weights in electrophoretic systems and for determination of critical micelle concentration of detergents. CTAB has also been used as a titrant for potentiometric titration of perchlorate and as a phase-transfer catalyst in reduction of arenes and heterocyclic compounds.

Formula: CH₃(CH₃)₁₅N(Br)(CH₃)₃
MW: 364.45 g/mol
Melting Pt: 248…251 °C (lit.)
Flash Pt: 244 °C (lit.)
MDL Number: MFCD00011772
CAS Number: 57-09-0
EINECS: 200-311-3
UN: 3077

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Specification Test Results

Physical Appearance Powder
pH 6.0 - 7.5 (0.1 M H2O, 0 °C)(Lit.)
Aggregation Number 170
Critical Micelle Concentration 1 mM (20-25°C)
Solubility Freely but slowly soluble in water; Freely soluble in methanol and ethanol; soluble in alcohol.

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