57-09-0 Usage
Description
Hexadecyl trimethyl ammonium bromide, also known as cetyltrimethylammonium bromide or CTAB, is a cationic surfactant and an organic bromide salt. It is a white powder that is soluble in water, alcohol, and chloroform. Hexadecyl trimethyl ammonium bromide is a component of the topical antiseptic cetrimide and is used as a titrant for the potentiometric titration of perchlorate with ion-selective electrodes.
Uses
Used in Antimicrobial Applications:
Hexadecyl trimethyl ammonium bromide is used as an anti-infectant agent for preventing the proliferation of bacteria, fungi, and yeast. It is particularly effective in cosmetic preparations, where it also serves as an emulsifying agent.
Used in Chemical Synthesis:
In the field of chemical synthesis, Hexadecyl trimethyl ammonium bromide is used as a template in the synthesis of Mesoporous γ-Fe2O3, a type of nanomaterial with potential applications in various industries.
Used in Biotechnology:
Hexadecyl trimethyl ammonium bromide is used as a cationic detergent in the isolation of high molecular weight DNA. Its surfactant properties help in the separation and purification of DNA from other cellular components.
Used in Pharmaceutical Industry:
As a component of the topical antiseptic cetrimide, Hexadecyl trimethyl ammonium bromide is used in the pharmaceutical industry for its antimicrobial properties, providing a broad-spectrum of activity against various microorganisms.
Used in Analytical Chemistry:
In analytical chemistry, Hexadecyl trimethyl ammonium bromide is used as a titrant for the potentiometric titration of perchlorate with ion-selective electrodes, allowing for accurate and precise measurements in various applications.
Biochem/physiol Actions
Hexadecyltrimethylammonium bromide also called cetyltrimethylammonium bromide (CTAB), is a cationic surfactant. CTAB is employed for extraction of DNA. CTAB method is efficient, cost and time effective for DNA extraction. CTAB is used as a shaping material and reducing agent for nanoparticle generation.
Purification Methods
Crystallise it from EtOH, EtOH/*benzene or from wet acetone after extracting twice with pet ether. Shake it with anhydrous diethyl ether, filter and dissolve it in a little hot MeOH. After cooling in the refrigerator, the precipitate is filtered off at room temperature and re-dissolved in MeOH. Anhydrous ether is added and, after warming to obtain a clear solution, it is cooled and the crystalline material is collected. [Dearden & Wooley J Phys Chem 91 2404 1987, Hakemi et al. J Am Chem Soc 91 120 1987, Beilstein 4 IV 819.]
Check Digit Verification of cas no
The CAS Registry Mumber 57-09-0 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 5 and 7 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 57-09:
(4*5)+(3*7)+(2*0)+(1*9)=50
50 % 10 = 0
So 57-09-0 is a valid CAS Registry Number.
InChI:InChI=1/C51H105N.BrH/c1-7-10-13-16-19-22-25-28-31-34-37-40-43-46-49(4)52(50(5)47-44-41-38-35-32-29-26-23-20-17-14-11-8-2)51(6)48-45-42-39-36-33-30-27-24-21-18-15-12-9-3;/h49-51H,7-48H2,1-6H3;1H
57-09-0Relevant articles and documents
Bunton,C.A. et al.
, p. 121 - 124 (1971)
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Jaeger,D.A.,Chou,P.K.,Durgadas,D.
, p. 5123 (1988)
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WAX COMPOSITIONS COMPRISING LINEAR OLEFIN DIMERS OR HODROGENATED VARIANTS THEREOF AND METHODS FOR PRODUCTION THEREOF
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Paragraph 0142-0147; 150, (2021/09/17)
Wax compositions may be obtained by providing an olefinic feed comprising a first linear alpha olefin having m carbon atoms and a second linear alpha olefin having n carbon atoms, wherein m and n are independently selected integers each ranging from about 12 to about 100, and the olefinic feed optionally comprises one or more internal olefins and/or one or more branched olefins; contacting the olefinic feed with a metal carbene catalyst in a reactor; forming ethylene and a hydrocarbon substance comprising a linear olefin dimer comprising two carbon atoms less than a sum of m and n; removing the ethylene from the reactor while forming the linear olefin dimer; and isolating a wax composition comprising the linear olefin dimer, a hydrogenated reaction product thereof, or any combination thereof.
Odd-even effect and unusual behavior of dodecyl-substituted analogue observed in the crystal structure of alkyltrimethylammonium-[Ni(dmit) 2]- salts
Dai, Kotaro,Nomoto, Kuniharu,Ueno, Shinji,Tomono, Kazuaki,Miyamura, Kazuo
experimental part, p. 312 - 319 (2011/05/13)
A series of [Ni(dmit)2]- (dmit: 1,3-dithiole-2- thione-4,5-dithiolato) salts of alkyltrimethylammonium (Cn: n represents the alkyl chain length; n = 3 and 518) have been prepared and analyzed by X-ray structural analysis. All complex salts have been found to be composed of alternate sheets of [Ni(dmit)2]- anions and sheets of cations with a pronounced interdigitation of the alkyl chains. However, molecular arrangement differed between (C3)[Ni(dmit)2] and other (Cn)[Ni(dmit)2] (n = 518). Adjacent cations were aligned along the long axis of [Ni(dmit)2]- anion in C3 complex salt, while in others (C5-C18 complex salts), they were aligned toward the short axis. Such a difference in arrangement arose from correlativity between the lengths of the long axis of cation and anion, namely CLCA. Furthermore, relative orientation between the alkyl chain of cation and [Ni(dmit)2]- anion differed between the odd- and even-numbered cations for C10-C18. Whereas the plane of alkyl chain for odd-numbered cation was normal to the plane of [Ni(dmit)2]- anion, that of even-numbered cation was parallel. It was also found that C12 analog behaved like odd-numbered cations. However, in C12 salt, the end methyl group of the dodecyl group adopted unusual end-gauche conformation.
