Tetrabutylammonium bromide CAS 1643-19-2

Products Name

Tetrabutylammonium bromide

Products Description

EINECS No.:216-699-2


Type:Pharmaceutical Intermediates

Appearance:White powder

Application:Organic intermediates

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Tetrabutylammonium bromide CAS 1643-19-2

Tetrabutylammonium bromide , Promotion Season Now in Store and Free Sample for Testing with Factory Price

Chemical Name: Tetrabutylammonium bromide
CAS No.: 1643-19-2
Molecular Fomula: C16H36BrN
Molecular weight: 322.37
Appearance: White to slightly cream Crystalline Powder
Sample: Available

Tetrabutylammonium bromide CAS 1643-19-2

Description of Tetrabutylammonium bromide

Tetra-n-butylammonium bromide (TBAB) is a quaternary ammonium salt with a bromide counterion commonly used as a phase transfer catalyst. It is used to prepared many other TABA salts via salt metathesis reactions.

Basic Info of Tetrabutylammonium bromide

Chemical Nametetrabutylammonium bromide
SynonymsTetrabutyl ammonium bromide;TABA;
TABA;TBAB;1-Butanaminium, N,N,N-tributyl-, bromide;TABA;TABA;TABA;IPC-TBA-BR;N,N,N-tributylbutan-1-aminium bromide;aliquat 100;tetra-n-butyl-ammonium bromide;TABA;Tetrabutyl.
CAS No.1643-19-2
Molecular FormulaC16H36BrN
Molecular Weight322.36800
Safety Info

Safety Statements


HS Code


WGK Germany


Risk Statements


Hazard Codes

Xi; Xn

Hazard Declaration

H315; H319; H335

Caution Statement

P261; P305 + P351 + P338



Signal Word



Appearance & Physical State

White to off white crystalline powder


1.039 g/mL at 25ºC

Boiling Point


Melting Point

103 – 104ºC

Refractive Index

n20/D 1.422

Water Solubility

600 g/L (20 ºC)


Stable. Incompatible with strong oxidizing agents. Protect from moisture.

Storage Condition

Store at RT.

Numbering system

BRN number


EINECS number


MDL number


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What is Tetrabutylammonium bromide?

     With the progress of science and technology and the development of society, chemical products have invariably permeated our daily lives, in medicine, food, cosmetics, electronics, industry, and other areas, becoming an essential part of our lives. One such product is Tetrabutylammonium bromide which has developed particularly rapidly in recent years. Do you know about Tetrabutylammonium bromide?

The official answer: Tetrabutylammonium bromide is a common chemical product on the market as an ion-pairing reagent and as an effective phase transfer catalyst. Tetrabutylammonium bromide is also known as tetrabutylammonium bromide. White crystals with deliquescence. Melting point 118℃. Freely soluble in water, alcohol, ether and acetone, slightly soluble in benzene.

Tetrabutylammonium bromide, also known as tetrabutylammonium bromide, is an organic salt with molecular formula C₁₆H₃₆BrN, pure product is white crystal or powder, with deliquescence and special smell, stable at room temperature and pressure. Soluble in water, alcohol and acetone, slightly soluble in benzene. Toxic, often used as organic synthesis intermediates, phase transfer catalysts, ion-pairing reagents

What’s the application of Tetrabutylammonium bromide?

Tetrabutylammonium bromide has been used as an organic chemical phase transfer catalyst for the synthesis of drug intermediates such as benzyltriethylammonium chloride, ethyl cinnamate and pseudovioletone, as well as for the synthesis of organic drugs such as the anti-infective Chemicalbook bactrim and sultamicillin. Tetrabutylammonium bromide has also been used as a catalyst in the synthesis of leucovorin drugs such as dagliflozin, an anti-diabetic drug with a new mechanism of action.


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Keywords of Tetrabutylammonium bromide

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