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Tetraethylammonium bromide

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Name

Tetraethylammonium bromide

EINECS 200-769-4
CAS No. 71-91-0 Density 1.397 g/cm3
PSA 0.00000 LogP -1.11320
Solubility 2795 g/L (25 °C) in water Melting Point 285 °C (dec.)(lit.)
Formula C8H20BrN Boiling Point N/A
Molecular Weight 210.157 Flash Point N/A
Transport Information N/A Appearance white to light yellow crystalline solid
Safety 26-36-37/39 Risk Codes 36/37/38
Molecular Structure Molecular Structure of 71-91-0 (Tetraethylammonium bromide) Hazard Symbols IrritantXi
Synonyms

Ammonium,tetraethyl-, bromide (8CI);Ethanaminium, N,N,N-triethyl-, bromide (9CI);Ethanaminium,N,N,N-triethyl-, bromide (1:1);Beparon;Bromethyl;Etambro;Etamon;Ethylon;Etylon;Sympatektoman;TEA bromide;TEAB;TMD 10;Teamon;Tetranium;Tetrylammonium bromide;

Article Data 22

Tetraethylammonium bromide Synthetic route

2509-16-2

trans-2-bromobutenedioic acid dimethyl ester

121-44-8

triethylamine

A

71-91-0

tetraethylammonium bromide

B

996-85-0, 98033-35-3

dimethyl diethylaminofumarate

Conditions
ConditionsYield
In acetonitrile for 7h; Heating;A 98.6%
B 87%
74-96-4

ethyl bromide

121-44-8

triethylamine

71-91-0

tetraethylammonium bromide

Conditions
ConditionsYield
In acetonitrile at 60℃; for 72h;98%

(Et4N)2{Mo3(μ3-S)(μ2-S2)3Br6}

A

(PPh3)3Mo3(μ3-S)(μ2-S)3Br4

B

71-91-0

tetraethylammonium bromide

C

3878-45-3

triphenylphosphine sulfide

Conditions
ConditionsYield
With P(C6H5)3 In methanol Stirring of a suspn. of Mo-compd. and PPh3 (MeOH, 1 h).; Filtn. of pptd. green solid, washing with hot MeOH and benzene, drying (vac.), elem. anal.;A 60%
B n/a
C >99
91-22-5

quinoline

120782-58-3

Et4N{Rh(1,5-cyclooctadiene)Br2}

A

120782-61-8

{Rh(Br)(1,5-cyclooctadiene)(quinoline)}

B

71-91-0

tetraethylammonium bromide

Conditions
ConditionsYield
In dichloromethane addn. of methanol, elimination of CH2Cl2, pptn. filtered off, washed with methanol, air-dried; elem. anal.;A 53%
B n/a

(Et4N)2{Mo3(μ3-S)(μ2-S2)3Br6}

A

Mo3(μ3-S)(μ2-S)3(dppe)3Br4

B

71-91-0

tetraethylammonium bromide

Conditions
ConditionsYield
With C2H4(P2(C6H5)4) In methanol byproducts: (dppe)S2; Boiling of Mo-compd. with dppe (MeOH, 1 h).; Recrystn. of bright green ppt. from a CH2Cl2/hexane mixt., elem. anal.;A 48%
B n/a
64-67-5

diethyl sulfate

121-44-8

triethylamine

71-91-0

tetraethylammonium bromide

Conditions
ConditionsYield
With Petroleum ether durch Zerlegung des entstandenen Aethylsulfats mit wss. Ba(OH)2;
540-49-8

cis+trans-dibromoethylene

121-44-8

triethylamine

A

71-91-0

tetraethylammonium bromide

B

109-89-7

diethylamine

121-44-8

triethylamine

108-88-3

toluene

535-11-5, 41978-69-2

Ethyl 2-bromopropionate

A

82614-48-0

ethyl 2-diethylaminopropanoate

B

71-91-0

tetraethylammonium bromide

C

636-70-4

triethylamine hydrobromide

Conditions
ConditionsYield
at 50℃;
121-44-8

triethylamine

535-11-5, 41978-69-2

Ethyl 2-bromopropionate

A

82614-48-0

ethyl 2-diethylaminopropanoate

B

71-91-0

tetraethylammonium bromide

C

636-70-4

triethylamine hydrobromide

Conditions
ConditionsYield
at 107℃;
20688-29-3

dimethyl 2-bromofumarate

121-44-8

triethylamine

A

71-91-0

tetraethylammonium bromide

B

996-85-0, 98033-35-3

dimethyl diethylaminofumarate

Conditions
ConditionsYield
In acetonitrile for 7h; Heating;

Tetraethylammonium bromide Chemical Properties

Molecule structure of Tetraethylammonium bromide (CAS NO.71-91-0):

IUPAC Name: Tetraethylazanium bromide
Molecular Formula: C8H20BrN
Molecualr Weight: 210.16 g/mol
Melting Point: 285 °C (dec.)(lit.)
Density: 1.397 g/cm3
Water Solubility: 2795 g/L (25 °C)
Sensitive: hygroscopic 
H-Bond Acceptor: 1
Rotatable Bond Count: 4
Exact Mass: 209.077912
MonoIsotopic Mass: 209.077912 
Canonical SMILES: CC[N+](CC)(CC)CC.[Br-]
InChI: InChI=1S/C8H20N.BrH/c1-5-9(6-2,7-3)8-4;/h5-8H2,1-4H3;1H/q+1;/p-1
InChIKey: HWCKGOZZJDHMNC-UHFFFAOYSA-M
EINECS: 200-769-4
Product Categories: quarternary ammonium salts; Ammonium Bromides (Quaternary); Quaternary Ammonium Compounds; Ammonium Salts; Greener Alternatives: Catalysis; Phase Transfer Catalysts; Ion-pair Reagents

Tetraethylammonium bromide Uses

 Tetraethylammonium bromide (CAS NO.71-91-0) is used as reagents of polarographic analysis and the intermediates of pesticide.

Tetraethylammonium bromide Toxicity Data With Reference

 

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
dog LD50 intravenous 55mg/kg (55mg/kg) LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES Journal of Pharmacology and Experimental Therapeutics. Vol. 97, Pg. 48, 1949.
mouse LD50 intraperitoneal 50mg/kg (50mg/kg)   National Technical Information Service. Vol. AD277-689,
mouse LD50 intravenous 14200ug/kg (14.2mg/kg)   Journal de Physiologie Vol. 49, Pg. 220, 1957.
 
mouse LD50 oral > 2gm/kg (2000mg/kg) LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES Journal of Pharmacology and Experimental Therapeutics. Vol. 97, Pg. 48, 1949.
rabbit LD50 intravenous 72mg/kg (72mg/kg) LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES Journal of Pharmacology and Experimental Therapeutics. Vol. 97, Pg. 48, 1949.
rat LD50 intraperitoneal 108mg/kg (108mg/kg)   Pharmacology: International Journal of Experimental and Clinical Pharmacology. Vol. 21, Pg. 256, 1980.
 
rat LD50 intravenous 63mg/kg (63mg/kg) LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES Journal of Pharmacology and Experimental Therapeutics. Vol. 97, Pg. 48, 1949.
rat LD50 subcutaneous 200mg/kg (200mg/kg)   Proceedings of the Society for Experimental Biology and Medicine. Vol. 78, Pg. 708, 1951.
 

Tetraethylammonium bromide Safety Profile

Hazard Codes: IrritantXi
Risk Statements: 36/37/38 
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36-37/39 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36:Wear suitable protective clothing. 
S37/39:Wear suitable gloves and eye/face protection.
WGK Germany: 3
RTECS: BS5950000
F: 3
HS Code: 29239000  

Tetraethylammonium bromide Specification

 Tetraethylammonium bromide (CAS NO.71-91-0) is also named as AI3-19150 ; Beparon ; Bromethyl ; Bromure de tetraethylammonium ; Bromure de tetraethylammonium [French] ; Bromure de tetrylammonium ; Bromure de tetrylammonium [INN-French] ; Bromuro de tetrilamonio ; Bromuro de tetrilamonio [INN-Spanish] ; Etambro ; Etamon ; Ethylon ; Etylon ; NSC 36724 ; Sympatektoman ; TEA bromide ; TEAB ; TMD 10 ; Teamon ; Tetraethyl ammonium bromide ; Tetranium ; Tetrylammonii bromidum ; Tetrylammonii bromidum [INN-Latin] ; Tetrylammonium bromide ; USAF DO-32 . Tetraethylammonium bromide (CAS NO.71-91-0) is white to light yellow crystalline solid. It is a quaternary ammonium salt. It is a common source for the tetraethylammonium cation.

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