1-Butyl-3-methylimidazolium bromide
1-Butyl-3-methylimidazolium bromide (CAS: 85100-77-2; Formula: C8H15BrN2) is an ionic liquid with a molecular weight of 219.12 g/mol. Characterised by its imidazolium cation and bromide anion, it serves as a versatile reagent and solvent in various chemical synthesis applications. Its unique properties make it suitable for specialised reactions and as a medium for certain organic transformations, contributing to advancements in chemical research and development.
- IUPAC
- BMIMBr
- Synonyms
- BMIMBr

Ionic Liquid Solvent
1-Butyl-3-methylimidazolium bromide functions as a non-volatile solvent in diverse organic reactions. Its ionic nature can influence reaction kinetics and selectivity, offering an alternative to traditional volatile organic solvents.
Catalysis Medium
This compound can serve as a medium for catalytic processes, potentially stabilising catalytic species or influencing the reaction environment. It is employed in research settings for exploring new catalytic pathways.
Chemical Synthesis Reagent
Utilised in specialised synthesis, 1-Butyl-3-methylimidazolium bromide acts as a reactant or a component in the preparation of more complex molecules. Its specific ionic structure is leveraged for targeted chemical transformations.
| Molecular weight | 219.12 |
|---|---|
| Empirical formula | C8H15BrN2 |
| Assay | ≥98.5% (HPLC) |
| Impurities tested | ≤200 ppm water |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 1-Butyl-3-methylimidazolium bromide used for?
+
1-Butyl-3-methylimidazolium bromide is used as a solvent and reagent in various chemical synthesis applications, including as an ionic liquid medium for reactions and catalysis.
What is the CAS number and formula for 1-Butyl-3-methylimidazolium bromide?
+
The CAS number for 1-Butyl-3-methylimidazolium bromide is 85100-77-2, and its empirical formula is C8H15BrN2.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies 1-Butyl-3-methylimidazolium bromide with an assay of ≥98.5% (HPLC) and a maximum water content of ≤200 ppm. We do not represent this product as USP, BP, or EP grade.
How should 1-Butyl-3-methylimidazolium bromide be handled safely?
+
Handling requires appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter should be used. Refer to the safety data sheet for full details.
Is 1-Butyl-3-methylimidazolium bromide a controlled substance?
+
Based on the provided data, 1-Butyl-3-methylimidazolium bromide is not indicated as a controlled substance.
How is this chemical packed, shipped, and exported?
+
Tech Serve Solutions packs and ships chemicals according to relevant regulations for safe transport and export. Specific packaging details depend on order size and destination.
How can I request a sample or quote for 1-Butyl-3-methylimidazolium bromide?
+
To request a sample or a quote, please contact our sales team via the website or direct contact details provided. Please specify the quantity required and your shipping destination.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis