1-Butyl-1-methylpyrrolidinium bromide(CAS: 93457-69-3)

1-Butyl-1-methylpyrrolidinium bromide has a crystalline form at room temperature. Its molecular weight is approximately 212.09 g/mol. It is soluble in common organic solvents like DMF and DMSO. Chemically, it is stable but can react with strong oxidizing agents. It has a low viscosity and is a good ionic liquid candidate.

1-Butyl-1-methylpyrrolidinium bromide is typically synthesized by reacting 1-methylpyrrolidinium bromide with n-butyl lithium. The reaction is carried out in an inert atmosphere to ensure high purity and yield. Catalysts like lithium hydride are sometimes used to improve the reaction selectivity and yield.

1-Butyl-1-methylpyrrolidinium bromide is used in pharmaceuticals for drug delivery systems, in polymers for its ionic liquid properties, and in sensors and semiconductors for its conductivity and thermal stability.

Proper personal protective equipment (PPE) such as gloves, goggles, and a lab coat should be worn when handling 1-Butyl-1-methylpyrrolidinium bromide. Work should be conducted in a fume hood to minimize inhalation risks. Spills should be cleaned up using appropriate absorbent materials and disposed of according to local regulations. Always consult the Safety Data Sheet (SDS) for detailed safety information.