4-(3-Butyl-1-imidazolio)-1-butanesulfonic acid triflate
4-(3-Butyl-1-imidazolio)-1-butanesulfonic acid triflate (CAS: 439937-63-0; Formula: C12H21F3N2O6S2; MW: 410.43) is a specialised ionic liquid. It is primarily utilised in chemical synthesis, serving as a versatile component in various organic reactions and as a potential medium for reactions requiring specific ionic environments. This compound offers a unique combination of properties valuable for advanced research and development applications.
- IUPAC
- 1-Butyl-3-(4-sulfobutyl)imidazolium triflate
- Synonyms
- 1-Butyl-3-(4-sulfobutyl)imidazolium triflate

Chemical Synthesis
This ionic liquid functions as a reaction medium or catalyst in various organic synthesis pathways. Its unique properties can influence reaction kinetics, selectivity, and product yields in specialised chemical transformations.
Ionic Liquid Applications
As a member of the ionic liquids family, it can be employed in areas such as electrochemistry, separation science, and materials science where its non-volatile and tunable properties are advantageous.
Specialty Synthesis
Utilised in advanced or niche synthetic procedures requiring specific solvent properties or ionic character to achieve desired outcomes in complex molecule construction.
| Molecular weight | 410.43 |
|---|---|
| Empirical formula | C12H21F3N2O6S2 |
| Assay | ≥97.0% |
| Impurities tested | ≤3.0% water≤50 mg/kg halogens (as chloride) |

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 |
| Anion traces | bromide (Br-): 50 mg/kgchloride (Cl-): 50 mg/kgfluoride (F-): 50 mg/kgnitrate (NO3-): 50 mg/kgsulfate (SO42-): 2000 mg/kg |
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 4-(3-Butyl-1-imidazolio)-1-butanesulfonic acid triflate used for?
+
This compound is primarily used in chemical synthesis, functioning as a reaction medium or catalyst, and in broader ionic liquid applications within research and development.
What are the CAS number and molecular formula?
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The CAS number is 439937-63-0 and the molecular formula is C12H21F3N2O6S2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this compound at an assay of ≥97.0%. We do not represent it as USP, BP, EP, or other pharmacopoeial grades.
What are the main safety concerns when handling this chemical?
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This compound is a Warning (GHS07) and causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Appropriate personal protective equipment, including eyeshields and gloves, and adequate ventilation are essential.
How is this chemical packed and shipped?
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Tech Serve Solutions exports this chemical globally, ensuring secure and compliant packaging suitable for international transport. Specific packaging details are available upon request.
How can I request a sample or quote?
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To request a sample or obtain a quote, please visit the Tech Serve Solutions website or contact our sales department directly.
Are there specific anion traces to be aware of?
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Yes, traces of bromide (Br-), chloride (Cl-), fluoride (F-), and nitrate (NO3-) are limited to 50 mg/kg, while sulfate (SO42-) is limited to 2000 mg/kg.
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