What is tetraethylammonium?

Tetraethylammonium

Tetraethylammonium (TEA) or (Et4N+) is a quaternary ammonium cation consisting of four ethyl groups attached to a central nitrogen atom, and is positively charged. It must exist in association with a counter-ion, and is most commonly found in simple salts such as tetraethylammonium chloride, tetraethylammonium bromide, tetraethylammonium iodide and tetraethylammonium hydroxide. Tetraethylammonium salts are used in chemical synthesis, have briefly been used in clinical applications, and are widely employed in pharmacological research. The identity of the anion associated with the tetraethylammonium cation frequently has little or no bearing on a particular chemical or biological type of action, but this is not invariably so.

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Some articles on tetraethylammonium:

Tetraethylammonium Bromide - See Also
... Tetraethylammonium Tetraethylammonium chloride Tetraethylammonium iodide. ...
Tetraethylammonium - Biology - Toxicology
... An extensive study of the toxicology of tetraethylammonium chloride in mice, rats and dogs was published by Gruhzit and co-workers in 1948 ... Another research group, working at about the same time, but using tetraethylammonium bromide, published the following LD50 data Mouse 38 mg/kg, i.v ... In one subject, described as a "healthy woman", 300 mg of tetraethylammonium bromide, i.v ...
Bromopentacarbonylrhenium(I) - Reactions
... Re(CO)5Br + Zn + HO2CCH3 → ReH(CO)5 + ZnBrO2CCH3 It also reacts with tetraethylammonium bromide in diglyme to give 2, an important precursor to compounds containing the rhenium ... fragment ReBr(CO)5 + 3 H2O → Br + 2 CO This route avoids the formation of the tetraethylammonium bromide byproduct when the tetraethylammonium complex is ... This is desirable because the tetraethylammonium bromide is often difficult to remove from reaction mixtures ...