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salts or quaternary ammonium compounds (called quaternary amines in oilfield parlance) are salts of quaternary ammonium cations. Polyquats are a variety of...

Silicone quaternary amine is a polymeric chemical antimicrobial agent used in some odor-repellent socks, including Burlington Bioguard Socks. Thom, Kerri...

enzymology, a quaternary-amine-transporting ATPase (EC 3.6.3.32) is an enzyme that catalyzes the chemical reaction ATP + H2O + quaternary amineout ⇌ {\displaystyle...

amine the reaction product is a quaternary ammonium salt in the Menshutkin reaction: R 3 − N | R 2 R 1 | : ⏟ tertiary amine + R 4 X ⏟ halogeno- alkane ⟶...

cyclic tertiary amines. It is also possible to have four organic substituents on the nitrogen. These species are not amines but are quaternary ammonium cations...

foam stabilizers. Amine oxides are highly polar molecules and have a polarity close to that of quaternary ammonium salts. Small amine oxides are very hydrophilic...

tertiary amines were stable when distilled at high temperatures under alkaline conditions, the quaternary amine was not. Heating quaternary tetraethylammonium...

The reaction starts with the formation of a quaternary ammonium iodide salt by treatment of the amine with excess methyl iodide (exhaustive methylation)...

reacts with dimethyl amine: RBr + HNMe2 → RNMe2 + HBr By reaction with tertiary amines, long-chain alkyl bromides give quaternary ammonium salts, which...

overactive bladder were all amines as of 2003. Quaternary ammonium cations in general are more hydrophilic than other amines and don't cross membranes well...

secondary) amine is methylated using excess formic acid and formaldehyde. Reductive amination reactions such as this one will not produce quaternary ammonium...

source. For example, in electrospray sources in positive ion mode a quaternary amine will ionize exceptionally well whereas a large hydrophobic alcohol...

systemic side effects. Ipratropium is a derivative of atropine but is a quaternary amine and therefore does not cross the blood–brain barrier, which prevents...

organic chemistry, the Menshutkin reaction converts a tertiary amine into a quaternary ammonium salt by reaction with an alkyl halide. Similar reactions...

primary amines (4) by reaction of benzyl or alkyl halides (1) with hexamethylenetetramine (2) followed by acid hydrolysis of the quaternary ammonium...

contains high amounts of humic acid. Reaction with quaternary amine forms a product called amine-treated lignite (ATL), which is used in drilling mud...

phospholipid with two 16-carbon saturated chains and a phosphate group with quaternary amine group attached. The DPPC is the strongest surfactant molecule in the...

11 Polyamine/Opine/Phosphonate Uptake Transporter (POPT) 3.A.1.12 Quaternary Amine Uptake Transporter (QAT) 3.A.1.13 Vitamin B12 Uptake Transporter (B12T)...

ammoniacal copper/quaternary ammonium. The copper in the preparation is in the form of a soluble complex with ammonia NH3 or an amine such as ethanolamine...

glycine betaine are derived from amino acids, but have a secondary and quaternary amine respectively. Dicarboxylic acid plus formylmethionine in eukaryotes...