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bromek cetrymonium ≥98% for molecular biology

Dostawca: MP Biomedicals
Niebezpieczeństwo

Synonim: N-Cetyl-N,N,N-trimethylammonium bromide, Cetyltrimethylammonium bromide, Hexadecyltrimethylammonium bromide, CTAB, (1-Hexadecyl)trimethylammonium bromide, N,N,N-Trimethylhexadecan-1-aminium bromide

0219400480 0219400483 0219400490 0219400491
ICNA0219400480EA 509 PLN
ICNA0219400480 ICNA0219400483 ICNA0219400490 ICNA0219400491
bromek cetrymonium ≥98% for molecular biology
bromek cetrymonium

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.

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.


  • Solubility: 1 mM(20-25°C)
  • Freely but slowly soluble in water
  • Freely soluble in methanol and ethanol
  • Soluble in alcohol


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

Formuła: CH₃(CH₂)₁₅N(Br)(CH₃)₃
MW: 364.45 g/mol
Temp. topnienia: 248…251 °C (lit.)
Temp. Zapłonu: 244 °C (lit.)
Temperatura przechowywania: Temperatura otoczenia
Numer MDL: MFCD00011772
Numer CAS: 57-09-0
Numer WE (dawny EINECS): 200-311-3
Jednostka: 3077
ADR: 9 III
Klasyfikacja Merck : 13,02034

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Wyniki testów specyfikacyjnych

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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