Tetrabutylammonium bromide CAS NO.1643-19-2

Tetrabutylammonium Bromide (TBAB) | CAS 1643-19-2 – High-Purity Phase-Transfer Catalyst

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Tetrabutylammonium Bromide (TBAB) | CAS 1643-19-2 – High-Purity Phase-Transfer Catalyst

Chemical Overview

• Product Name: Tetrabutylammonium Bromide

• CAS Number: 1643-19-2

• Molecular Formula: C16H36BrN

• Molecular Weight: 322.37 g/mol

• EC Number: 216-699-2

• Chemical Structure: (C4H9)4N? Br?

• Grade: ≥99% Purity (Analytical/Industrial grade)

Other Names

• TBAB

• Tetra-n-butylammonium bromide

• Tetrabutylammonium bromide

• TBA Bromide

• Quaternary ammonium salt

What is Tetrabutylammonium Bromide (TBAB)?

Tetrabutylammonium Bromide (CAS 1643-19-2), also known as TBAB, is a quaternary ammonium salt widely used as a phase-transfer catalyst (PTC) in organic synthesis. It appears as a white crystalline powder and is highly soluble in water, alcohols, and polar organic solvents. TBAB facilitates the migration of anions from aqueous to organic phases, enabling efficient two-phase reactions.

Applications of Tetrabutylammonium Bromide

1. Organic Synthesis

Acts as a phase-transfer catalyst to enhance reactivity in biphasic systems
Used in nucleophilic substitution, oxidation, alkylation, and polymerization reactions

2. Pharmaceutical & Fine Chemicals

Essential intermediate and reagent in drug development and API synthesis
Supports green chemistry by reducing the need for harsh solvents

3. Electrochemistry & Materials

Used as an electrolyte or supporting salt in electrochemical studies
Applied in ionic liquids, surfactants, and ionic conductors

4. Industrial Uses

Catalyzes processes in pesticide, plastic, and dye manufacturing
Enhances yield and selectivity in industrial-scale chemical reactions

Technical Specifications

Property	Specification
Appearance	White crystalline powder
Assay (Purity)	≥ 99%
Melting Point	100–104°C
Solubility	Soluble in water, alcohol, acetone
Moisture Content	≤ 0.5%
Storage Conditions	Store in a cool, dry, well-ventilated place in tightly closed containers
Packaging	25kg drum / 1kg aluminum foil bag / customized packaging available

 

Key Benefits of TBAB

• High purity and low moisture content

• Efficient and cost-effective phase-transfer catalyst

• Enhances reaction rates and yields

• Suitable for industrial and laboratory use

• Compatible with a wide range of chemical systems

Why Choose Tetrabutylammonium Bromide?

Reliable Quality Control – Strict testing ensures TBAB meets international standards
Global Shipping – We deliver TBAB safely and promptly to over 60 countries
Custom Solutions – Bulk, OEM, and special packaging supported
Technical Expertise – Dedicated chemists available for application support

Conclusion

Tetrabutylammonium Bromide (CAS 1643-19-2) is a versatile, high-purity phase-transfer catalyst essential for organic synthesis, electrochemistry, and industrial chemical processes. Whether you are a pharmaceutical manufacturer, research institute, or chemical processor

Company Information

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Packing:

1) Aluminum foil for powders

2) Fluorinated bottles for liquids

3) 25kg plastic drum and Fiber drum

4) 180kg Iron Drum

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