1-Butyl-3-methylimidazolium tosylate
1-Butyl-3-methylimidazolium tosylate (CAS 410522-18-8), with the molecular formula C15H22N2O3S and a molecular weight of 310.41 g/mol, is an ionic liquid. It is commonly employed as a solvent and catalyst in various chemical synthesis applications, particularly within specialty synthesis and for imidazolium-based reactions. TSS supplies this compound with a purity of ≥97.0%.
- IUPAC
- p-Toluenesulfonic acid 1-Butyl-3-methylimidazolium salt

Solvent in Organic Synthesis
This ionic liquid can serve as a non-volatile, tunable solvent for a wide range of organic reactions. Its unique properties can influence reaction rates and selectivity.
Catalysis
It may function as a catalyst or co-catalyst in certain chemical transformations, potentially offering advantages in recyclability and reaction efficiency.
Specialty Chemical Synthesis
Utilised in specific synthetic routes within the realm of specialty chemicals, leveraging its ionic nature for targeted transformations.
Imidazolium-based Reactions
As an imidazolium salt, it is suitable for reactions involving this specific cation, finding use in research and development of novel materials and processes.
| Molecular weight | 310.41 |
|---|---|
| Empirical formula | C15H22N2O3S |
| Assay | ≥97.0% |
| Impurities tested | ≤1.0% 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 | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| 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-Butyl-3-methylimidazolium tosylate used for?
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1-Butyl-3-methylimidazolium tosylate is used as a solvent and catalyst in chemical synthesis, particularly in specialty synthesis and for reactions involving imidazolium compounds.
What is the CAS number and formula for 1-Butyl-3-methylimidazolium tosylate?
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The CAS number is 410522-18-8 and the empirical formula is C15H22N2O3S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1-Butyl-3-methylimidazolium tosylate with an assay of ≥97.0%. We do not represent this product as USP, BP, EP, or other pharmacopoeia grades.
How should 1-Butyl-3-methylimidazolium tosylate be handled?
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This compound is a Warning substance. It causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Handle with appropriate personal protective equipment, including eyeshields and gloves, and ensure adequate ventilation. Avoid breathing dust/fume/gas/mist/vapours/spray. In case of contact with eyes, rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Is 1-Butyl-3-methylimidazolium tosylate a controlled substance?
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Based on the provided data, there is no indication that 1-Butyl-3-methylimidazolium tosylate is a controlled substance.
How is this chemical packed, shipped, and exported?
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Tech Serve Solutions adheres to all relevant regulations for packing, shipping, and exporting chemicals globally. Specific packaging details depend on order size and destination, ensuring safe and compliant transit.
How can I request a sample or quote for 1-Butyl-3-methylimidazolium tosylate?
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To request a sample or a quotation, please contact our sales department via the details provided on our website, referencing the product name and CAS number 410522-18-8.
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