Dimethylamine


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dimethylamine

[‚dī¦meth·əl′am‚ēn]
(organic chemistry)
(CH3)2NH Flammable gas with ammonia aroma, boiling at 7°C; soluble in water, ether, and alcohol; used as an acid-gas absorbent, solvent, and flotation agent, in pharmaceuticals and electroplating, and in dehairing hides.

Dimethylamine

 

a secondary acyclic amine, (CH3)2NH; a colorless gas with a sharp, unpleasant odor. Upon cooling it condenses readily to a colorless liquid. Melting point, −92.2°C; boiling point, 6.9°C. It is soluble in water and organic solvents; with acids it yields crystalline salts and undergoes acylation, alkylation, and nitrosation. It is formed upon putrefaction of proteins.

In industry, dimethylamine is prepared (with an admixture of trimethylamine) from methanol and ammonia, as well as from formaldehyde and ammonium chloride. It is used in organic synthesis (the Mannich reaction) to produce medicinal preparations (dicain, chlorpromazine, and so on), rocket fuel (dimethylhydrazine), and vulcanization accelerators.

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The TVBN content contains mainly ammonia, trimethylamine and dimethylamine that are produced by either bacteria or enzymic degradation (Cai et al.
Urine obtained from rats with blood stasis contained higher level of taurine and lower levels of N-acetyl glycoprotein, succinate, 2-oxoglutarate, citrate, dimethylamine, glycine, sarcosine, phenylacetylglycine and hippurate.
These include the formation of anionic polyacrylamide through hydrolysis, (17) the synthesis of sulfomethylated derivatives from the reaction of polyacrylamide with formaldehyde and sodium bisulfate, (18) the formation of aminomethylated polyacrylamide from the reaction of polyacrylamide with formaldehyde and dimethylamine (Mannich reaction), (19) and the generation of various derivatives by transamidation reactions including hydroxamated polyacrylamides used as a flocculant in the Bayer process.
Dimethylamine (CAS 124-40-3) Market Research Report presents comprehensive data on dimethylamine markets globally and regionally (Europe, Asia, North America etc.
The Dimethylamine (CAS 124-40-3) Market Research Report includes dimethylamine description, covers its application areas and related patterns.
GC-MS assay for hepatic DDAH activity in diabetic and non-diabetic rats by measuring dimethylamine (DMA) formed from asymmetric dimethylarginine (ADMA): evaluation of the importance of S-nitrosothiols as inhibitors of DDAH activity in vitro and in vivo in humans.
The major pathway for elimination of ADMA is its metabolism by the enzyme dimethylarginine dimethylaminohydrolase, yielding L-citrulline and dimethylamine (2).
There are tricarbonylamide, phenolic diketone, and dimethylamine groups in tetracycline antibiotics, which can contribute to a marked pH-dependent speciation affecting aqueous solubility and lipophilicity.
Emphases placed on the functionalization of 3DOM sPS by chloromethylation, and further reaction with dimethylamine to evidence the versatile functionalization approach at the pore wall of 3DOM sPS (Scheme 1).
List notables nitrocellulose, hydrogen peroxide, acetaldehyde, aluminum powder, dimethylamine and potassium nitrate all are common in metalcasting facilities, appearing in paints, resins, coatings, pigments, oxidation systems and risers.