Agent Name

Tetraethylammonium bromide

CAS Number




Major Category

Nitrogen Compounds


Ammonium, tetraethyl-, bromide; Ethanaminium, N,N,N-triethyl-, bromide; Beparon; Bromethyl; Bromure de tetraethylammonium [French]; Bromure de tetrylammonium [INN-French]; Bromuro de tetrilamonio [INN-Spanish]; Etambro; Etamon; Ethylon; Etylon; Sympatektoman; TEA bromide; TEAB; Teamon; Tetraethyl ammonium bromide; Tetranium; Tetrylammonii bromidum [INN-Latin]; Tetrylammonium bromide; TMD 10; [ChemIDplus] N,N,N-Triethylethanaminium bromide (1:1); [Merck Index]


Quaternary Amines


Deliquescent solid; [Merck Index] Colorless crystalline solid; Highly hygroscopic; [Sigma-Aldrich MSDS]


A ganglion blocking agent; [Merck Index] In common with tetraethylammonium chloride and tetraethylammonium iodide, TEAB has been used as a source of tetraethylammonium ions for numerous clinical and pharmacological studies, which are covered in more detail under the entry for Tetraethylammonium. Briefly, TEAB has been explored clinically for its ganglionic blocking properties, although it is now essentially obsolete as a drug, and it is still used in physiological research for its ability to block K+ channels in various tissues." [Wikipedia]


Causes mydriasis, tremor, and changes in motor activity in acute intraperitoneal studies of mice; Causes ganglion blockage and lowered blood pressure in acute intravenous studies of cats; [RTECS] A skin and strong eye irritant; Targets the heart and CNS; [Sigma-Aldrich MSDS]

Exposure Assessment
Vapor Pressure

7.92E-7 mm Hg

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Toxicity Information


Chemical Information

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