TBAB Tetrabutylammonium Bromide CAS 1643-19-2

English Name：Tetrabutyl ammonium bromide

Type：quaternary ammonium salt

CAS No：1643-19-2

Molecular Formula：(C₄H₉)₄NBr       Molecular weight：322.3714

Purity (content)：99%

Properties: Off-white solid, melting point 101–104°C. Hygroscopic, soluble in water, alcohol, and chloroform, slightly soluble in benzene, with deliquescent properties.

Applications: This product is an excellent phase transfer catalyst, suitable for use as a phase transfer catalyst in chemical or pharmaceutical organic synthesis reactions, as an organic synthetic intermediate, and as a polarographic analysis reagent. It is used in the synthesis of bacampicillin, sultamicillin, and other compounds. In organic synthesis chemistry, it serves as a phase transfer catalyst in reactions such as halogen displacement, redox reactions, N-alkylation, and dichlorocarbene generation. It also acts as a curing accelerator in powder coatings, epoxy resins, and other polymerizations, as well as a phase-change energy storage material in refrigeration systems.