1-Butyl-2,3-dimethylimidazolium chloride CAS 98892-75-2

1. Description

1-Butyl-2,3-dimethylimidazolium chloride (CAS 98892-75-2) is a highly stable imidazolium-based ionic liquid investigated for specialized pharmaceutical applications. Featuring methylation at the C2 position on the imidazolium ring, it offers superior thermal and chemical robustness compared to related C2-H imidazolium salts like BMIM-Cl. This enhanced stability makes it suitable as a resilient solvent or reaction medium in demanding synthetic processes, or as a precursor for other functional materials in pharmaceutical R&D.

2. Properties Table

Property	Value
Chemical Name	1-Butyl-2,3-dimethylimidazolium chloride
Abbreviation	BMMIM-Cl; [BMMIM][Cl]
CAS Number	98892-75-2
Molecular Formula	C9​H17​ClN2​
Molecular Weight	$188.70g/mol$
Appearance	White to off-white crystalline solid
Purity	$>98.0\%$
Melting Point	Approx. $75-80°C$
Stability	High thermal and chemical stability (due to C2 methylation)
Solubility	Soluble in water and polar organic solvents

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