1,3-Dimethylimidazolium methanesulfonate
1,3-Dimethylimidazolium methanesulfonate (CAS 521304-36-9) is an ionic liquid with the molecular formula C6H12N2O3S and a molecular weight of 192.24 g/mol. This compound is characterised by its imidazolium cation and methanesulfonate anion. It finds utility in various chemical synthesis applications, particularly as a catalyst or reaction medium in specialised synthetic processes. TSS supplies this chemical with a high purity assay suitable for demanding research and development.
- IUPAC
- MMIM CH3SO3
- Synonyms
- C6H12N2O3S

Catalysis
1,3-Dimethylimidazolium methanesulfonate serves as a catalyst in various organic transformations, offering a unique reaction environment due to its ionic nature. Its properties allow for potentially enhanced reaction rates and selectivity in specific synthetic pathways.
Specialty Synthesis
This compound is employed in advanced chemical synthesis, acting as a reaction medium or component in the development of complex molecules. Its structure is well-suited for applications requiring tailored solvent properties or specific ionic interactions.
Ionic Liquid Applications
As an ionic liquid, it can be utilised in diverse fields ranging from electrochemistry to materials science. Its low vapour pressure and tunable properties make it an interesting alternative to traditional volatile organic solvents.
| Molecular weight | 192.24 |
|---|---|
| Empirical formula | C6H12N2O3S |
| Assay | ≥99.0% (HPLC/T) |
| Grade | for catalysis |
| Impurities tested | ≤10 mg/kg halogenes≤200 ppm water |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26 |
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 1,3-Dimethylimidazolium methanesulfonate used for?
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1,3-Dimethylimidazolium methanesulfonate is primarily used in chemical synthesis, particularly as a catalyst or reaction medium in specialty synthetic processes and as an ionic liquid.
What are the CAS number and formula for 1,3-Dimethylimidazolium methanesulfonate?
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The CAS number is 521304-36-9 and the empirical formula is C6H12N2O3S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1,3-Dimethylimidazolium methanesulfonate with an assay of ≥99.0% (HPLC/T) and a grade for catalysis. We do not represent this product as USP, BP, or EP grade.
What are the safety and handling precautions for this chemical?
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This compound is a Warning substance, causing skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Appropriate personal protective equipment, including a dust mask type N95 (US), eyeshields, and gloves, should be used. Handle in a well-ventilated area and avoid breathing dust. In case of eye contact, rinse cautiously with water for several minutes; remove contact lenses if present and easy to do. Continue rinsing.
How is 1,3-Dimethylimidazolium methanesulfonate typically packed and shipped?
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Tech Serve Solutions packs and exports chemicals according to international shipping regulations, ensuring safe transit. Specific packaging details can be provided upon request.
How can I request a sample or quote for 1,3-Dimethylimidazolium methanesulfonate?
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To request a sample or quote, please use the contact form on our website or contact our sales department directly, specifying the product name and CAS number (521304-36-9).
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