1-Butyl-2,3-dimethylimidazolium bromide CAS 475575-45-2

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1. Description

1-Butyl-2,3-dimethylimidazolium bromide (CAS 475575-45-2) is a thermally and chemically robust ionic liquid belonging to the C2-methylated imidazolium class. Its key benefit is enhanced stability derived from the protected C2 position, making it a reliable solvent or reaction medium for challenging pharmaceutical syntheses. The bromide anion provides different physicochemical properties (e.g., melting point, solubility) compared to its chloride analogue, offering versatility for specialized research and development applications.

2. Properties Table

Property Value
Chemical Name 1-Butyl-2,3-dimethylimidazolium bromide
Abbreviation BMMIM-Br; [BMMIM][Br]
CAS Number 475575-45-2
Molecular Formula
Molecular Weight
Appearance White to pale yellow solid or viscous liquid (low MP)
Purity
Melting Point Approx.
Stability High thermal and chemical stability (due to C2 methylation)
Solubility Soluble in water and polar organic solvents

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