Examples of 'quaternary nitrogen' in a sentence
Meaning of "quaternary nitrogen"
quaternary nitrogen - a chemical compound containing nitrogen with a valence of four
How to use "quaternary nitrogen" in a sentence
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quaternary nitrogen
Quaternary nitrogen compounds with anions are also considered.
These surfactants typically contain quaternary nitrogen moieties.
Quaternary nitrogen and therefore quaternary amino acids are included.
These polymers have a pendant quaternary nitrogen functional group present.
The quaternary nitrogen imparts inherent chemical reactivity into these alkaloids.
Oxygen transfer agents which comprise a quaternary nitrogen atom are preferred.
They include quaternary nitrogen and therefore are quaternary amido acids.
Pentavalent nitrogen ring compounds are also considered quaternary nitrogen compounds.
They include quaternary nitrogen and therefore are quaternary amino acids.
The agents also include salts containing quaternary nitrogen atoms.
The tetrasubstituted quaternary nitrogen atom is positively charged and hence cationic.
Certain compounds of the present invention contain a quaternary nitrogen moiety.
Quaternary nitrogen compounds have found commercial acceptance for fabric softening.
Is an organic species having two quaternary nitrogen atoms acting as an organic template.
Typically the centre of permanent positive charge is provided by a quaternary nitrogen atom.
See also
Even more preferably, the level of quaternary nitrogen should be as low as possible.
A quaternizing agent suitable for converting the tertiary amino group to a quaternary nitrogen.
Ethylene chloride or epichlorohydrin and excludes quaternary nitrogen atoms which can not react further.
Quaternizing agent suitable for converting the tertiary amine group into a quaternary nitrogen.
Amphoteric detergents include quaternary nitrogen and are, therefore, quaternary amido acids.
The polymers also include those salts containing quaternary nitrogen atoms.
Cationic surfactants typically contain quaternary nitrogen moieties and tend to be cyclodextrin-incompatible.
Cationic silicones of the present invention comprise one or more quaternary nitrogen moieties.
The quaternary nitrogen is trisubstituted with relatively shorter alkyl chains, such as methyl groups.
It is preferred that the organic compound has a quaternary nitrogen or ammonium group.
In the following quaternary nitrogen compounds of the MEXO, DEXO and TEXO series are described.
Preferably the cationic functional groups of the cationic polymer comprise quaternary nitrogen centres.
Examples of such groups comprise quaternary nitrogen groups, sulphonate groups and carboxylate groups.
The compounds of this invention also include those salts containing quaternary nitrogen atoms.
These polymers have a pendant quaternary nitrogen functional group present and are represented by the formula,.
The compounds described above also include those salts containing quaternary nitrogen atoms.
The quaternary nitrogen in formula IV is identified herein as N ″.
Heteroarylium refers to heteroaryl groups bearing a quaternary nitrogen atom and thus a positive charge.
The quaternary nitrogen in formula III is identified herein as N ′.
The said nitrogenous groups can particularly contain at lest one tertiary or quaternary nitrogen atom.
The amphoteric / zwitterionic surfactants include a quaternary nitrogen and therefore are quaternary amido acids.
Quaternary ammonium compound is the name for organic ammonium compounds with quaternary nitrogen atoms.
M is hydrogen, a quaternary nitrogen cation or a etal cation ;.
Preferably, the polar moiety contains a tertiary or quaternary nitrogen.
The two quaternary nitrogen ( N+ ) atoms also explain the presence of the doubly charged mass peaks.
At high pH, base formation is favored ; the quaternary nitrogen species reforms at low pH.
It does not go through the blood-brain barrier due to the charge on quaternary nitrogen.
Structurally, betaine compounds contain a carboxylate functional group and a quaternary nitrogen function separated by a methylene moiety.
In yet another preferred embodiment, the cationic silicone polymer comprises only integrated quaternary nitrogen moieties.
These intermediates are then reacted with a different quaternary nitrogen heterocycle, HET2.
The tertiary polyamines should also preferably possess less than about 30 % of quaternary nitrogen.
Suitable compounds for incorporating the carboxylate, sulfonate and quaternary nitrogen groups are described in U. S.
These nitrogen-containing groups may in particular include a tertiary or quaternary nitrogen atom.
Is a non-silicone block containing quaternary nitrogen groups;.
Where the compound is in the ( R ) configuration with respect to the quaternary nitrogen.
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