Tetrabutylammonium bromide CAS No 1643-19-2;10549-76-5

Tetrabutylammonium Bromide (TBAB)

Chemical Name: Tetrabutylammonium bromide

Chemical Synonyms: TBAB; Tetra-n-butylammonium bromide; 1-Butanaminium, N,N,N-tributyl-, bromide

CAS No.: 1643-19-2/10549-76-5

Molecular Formula: C₁₆H₃₆BrN

Molecular Weight: 322.37 g/mol

Product Properties: White to off-white crystalline powder; hygroscopic; freely soluble in water (approx. 600 g/L at 20 °C); melting point 102–106 °C.

Storage: Keep container tightly closed in a cool, dry, and well-ventilated place. Protect from moisture, heat, and direct sunlight.

Packing: Industrial grade: 25 kg drums/bags (custom repackaging available); reagent grade: 100 g–500 g containers. Each shipment can be supplied with COA and MSDS.

Application: High-efficiency phase-transfer catalyst (PTC) for alkylation, halogenation, cyanation, and other two-phase reactions; pharmaceutical intermediate synthesis; agrochemical manufacturing; precursor for ionic liquids and functional polyelectrolytes; supporting electrolyte in electrochemistry.

Product Specification: Assay ≥ 99.0% (typical); moisture ≤ 0.30%; free amine ≤ 0.40%; acid value ≤ 0.30 mg KOH/g. Higher purity grades (≥ 99.5%) available upon request.