64-20-0 Usage
Description
Tetramethylammonium bromide is a quaternary ammonium compound with the chemical formula (CH3)4NBr. It is a white crystalline solid that is soluble in water and exhibits surface-active properties.
Uses
Used in Personal Care Industry:
Tetramethylammonium bromide is used as a surface-active agent and an active ingredient for conditioners. It helps to improve the texture and manageability of hair, providing a smooth and silky feel.
Used in Textile and Paper Industry:
Tetramethylammonium bromide is used as a softener for textiles and paper products. It imparts softness, smoothness, and improved handle to the materials, enhancing their overall quality.
Used in Disinfection and Sanitization:
Tetramethylammonium bromide is employed as a disinfection agent, sanitizer, antimicrobial, and antistatic agent. It helps to kill or inhibit the growth of microorganisms, ensuring cleanliness and hygiene in various applications.
Used in Synthetic Chemistry:
Tetramethylammonium bromide plays an important role as a phase transfer catalyst in synthetic chemistry. It facilitates the transfer of reactants between different phases, improving the efficiency and selectivity of chemical reactions.
Used in Organic Synthesis:
Tetrabutylammonium bromide (TBAB), a related compound, may be used in the molten state for various organic synthesis processes, such as the synthesis of (2S)-5-(3-phenyl-2-phthalimidylpropanoylamino)isophthalic acid, alkyl-substituted pyrroles, dithioacetals from acetals, polyamides, and the addition of thiols to conjugated alkenes. It also catalyzes the dehydrochlorination of poly(vinyl chloride).
Purification Methods
Crystallise the bromide from EtOH, EtOH/diethyl ether, MeOH/acetone, water or from acetone/MeOH (4:1) by adding an equal volume of acetone. It is dried at 110o under reduced pressure or at 140o for 24hours. [Beilstein 4 IV 145.]
Check Digit Verification of cas no
The CAS Registry Mumber 64-20-0 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 6 and 4 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 64-20:
(4*6)+(3*4)+(2*2)+(1*0)=40
40 % 10 = 0
So 64-20-0 is a valid CAS Registry Number.
InChI:InChI=1/C4H12N.BrH/c1-5(2,3)4;/h1-4H3;1H/q+1;/p-1
64-20-0Relevant articles and documents
Lichtin,Rao
, p. 2417,2419 (1961)
NEUTRAL LAYER POLYMER COMPOSITION FOR DIRECTED SELF ASSEMBLY AND PROCESSES THEREOF
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Page/Page column, (2014/01/08)
The present invention relates to a novel polymeric composition comprising a novel polymer having two or more repeat units and a terminus having the structure (1): wherein R1 represents a C1-C20 substituted or unsubstituted alkyl group, w is a number from 1-8, X is oxygen (O) or nitrogen (N), and Rd is a reactive group. The invention also relates to a process for forming a pattern using the novel polymeric composition. The invention further relates to a process of making the novel polymer.
Synthesis of biobased N-methylpyrrolidone by one-pot cyclization and methylation of γ-aminobutyric acid
Lammens, Tijs M.,Franssen, Maurice C. R.,Scott, Elinor L.,Sanders, Johan P. M.
experimental part, p. 1430 - 1436 (2010/09/05)
N-Methylpyrrolidone (NMP) is an industrial solvent that is currently based on fossil resources. In order to prepare it in a biobased way, the possibility to synthesize NMP from γ-aminobutyric acid (GABA) was investigated, since GABA can be obtained from glutamic acid, an amino acid that is present in many plant proteins. Cyclization of GABA to 2-pyrrolidone and subsequent methylation of 2-pyrrolidone to NMP was achieved in a one-pot procedure, using methanol as the methylating agent and a halogen salt (i.e. ammonium bromide) as a catalyst. A selectivity above 90% was achieved, as well as a high conversion. Methylation of 2-pyrrolidone could also be done with dimethyl carbonate, but then the selectivity for NMP was less (67%).
The synthesis of quaternary ammonium salts from ammonium salts and dialkyl carbonate
Zheng, Zhuoqun,Wu, Tinghua,Zhou, Xiaoping
, p. 1864 - 1865 (2008/03/14)
Quaternary ammonium salts were synthesized from ammonium salts and dialkyl carbonates over an ionic liquid catalyst 1-ethyl-3-methylimidazolium bromide. The Royal Society of Chemistry 2006.
