quaternary amine

The addition of quaternary amine additives contribute to the improved metal distribution between high and low current density areas.

A synthetic quaternary amine, it is available in oral and intravenous (i.v.) forms.

Methacholine has a charged quaternary amine structure, rendering it insoluble to lipid cell membranes.

This is a phospholipid with two 16-carbon saturated chains and a phosphate group with quaternary amine group attached.

When reacted with quaternary amine, amine treated lignite (ATL) forms.

Being a quaternary amine, muscarine is less completely absorbed from the gastrointestinal tract than tertiary amines, but it does cross the blood brain barrier.

The osmolytes, sarcosine and glycine betaine are derived from amino acids, but have an secondary and quaternary amine respectively.

The compound's polar groups, the quaternary amine and hydroxyl, render it lipid-insoluble, which might suggest it would be unable to cross the blood-brain barrier.

Secondary, tertiary, and quaternary amines have also been used for some uranium extractions as an alternative to DEHPA.

This enhances the influence of the column's sulfonic acid functional groups of its surface chemistry over its, slightly diminished (by pH), quaternary amine.

Since it is a quaternary amine, it is poorly absorbed in the gut and does not cross the blood-brain barrier, except possibly in stressful conditions.

The anionic subsite accommodates the positive quaternary amine of acetylcholine as well as other cationic substrates and inhibitors.

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

The common name derives from the fact that these compounds are POLY-alkyl QUATernary amines.

Ipratropium is a derivative of atropine but is a quaternary amine and therefore does not cross the blood-brain barrier, which prevents central side-effects (anticholinergic syndrome).

A.1.12 Quaternary Amine Uptake Transporter (QAT)

Unlike methylnaltrexone (another peripherally acting mu-receptor antagonist) that bears a quaternary amine, alvimopan owes its selectivity for peripheral receptors to its kinetics.

Antimicrobial activity can be imparted onto a surface through the grafting of functionalized polymers, for example those terminated with quaternary amine functional groups, through one of two principle methods.

For example, in electrospray sources in positive ion mode a quaternary amine will ionize exceptionally well whereas a large hydrophobic alcohol will most likely not be seen no matter how concentrated.

Quaternary ammonium salts or quaternary ammonium compounds (called quaternary amines in oilfield parlance) are salts of quaternary ammonium cations with an anion.

The 3 substrates of this enzyme are ATP, HO, and quaternary amine, whereas its 3 products are ADP, phosphate, and quaternary amine.

Singly, doubly, triply and quadruply substituted alkyl compounds of ammonia are called amines (four substitutions, to form commercially and biologically important quaternary amines, results in a positively charged nitrogen, and thus a water-soluble, or at least amphiphilic, compound).