1,3-Dihydroxyimidazolium bis(trifluoromethylsulfonyl)imide
1,3-Dihydroxyimidazolium bis(trifluoromethylsulfonyl)imide (CAS 951021-128) is a unique chemical compound with the molecular formula C5H5F6N3O6S2 and a molecular weight of 381.23 g/mol. This substance serves as a valuable ionic liquid and N-heterocyclic carbene (NHC) precatalyst. It finds application in diverse chemical synthesis processes, particularly where advanced catalytic activity is required.
- IUPAC
- (OH)2Im-NTf2
- Synonyms
- C5H5F6N3O6S2(OH)2Im-NTf2

Ionic Liquid Applications
As an ionic liquid, this compound exhibits properties suitable for various solvent applications in chemical reactions. Its ionic nature can influence reaction rates and selectivity.
NHC Precatalyst in Synthesis
This compound functions as a precatalyst for N-heterocyclic carbenes (NHCs). NHCs are widely employed in organometallic chemistry and organic synthesis for catalysing reactions such as cross-couplings and polymerisations.
Specialty Chemical Synthesis
Its specific structure makes it a useful component in specialty synthesis, enabling the creation of complex molecules. The bis(trifluoromethylsulfonyl)imide anion contributes to its stability and unique solubility characteristics.
| Molecular weight | 381.23 |
|---|---|
| Empirical formula | C5H5F6N3O6S2 |
| Assay | ≥98% (13C-NMR)≥98% (19F-NMR)≥98% (31P-NMR)98% |
| Refractive index | n20/D 1.4275 |
| Application | Ionic liquid and NHC precatalyst1 |
| Suitability | complies for IR spectroscopy |
| Protective equipment | Eyeshields, Gloves |
|---|---|
| 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 1,3-Dihydroxyimidazolium bis(trifluoromethylsulfonyl)imide used for?
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It is primarily used as an ionic liquid and an N-heterocyclic carbene (NHC) precatalyst in various chemical synthesis applications.
What is the CAS number and formula for 1,3-Dihydroxyimidazolium bis(trifluoromethylsulfonyl)imide?
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The CAS number is 951021-128 and the empirical formula (Hill notation) is C5H5F6N3O6S2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this compound with an assay of ≥98% (verified by 13C-NMR, 19F-NMR, and 31P-NMR). TSS does not represent this product as USP, BP, EP or other pharmacopoeial grades.
How should 1,3-Dihydroxyimidazolium bis(trifluoromethylsulfonyl)imide be handled safely?
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When handling, it is recommended to use Eyeshields and Gloves. Refer to the safety data sheet for comprehensive handling information. The WGK Germany classification is 3.
How is this chemical packed, shipped, and exported?
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This chemical is carefully packed according to international shipping regulations and is available for export globally by Tech Serve Solutions.
How can I request a sample or a quote?
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To request a sample or obtain a quote, please contact our sales team via the website or direct email, providing your specific requirements and delivery details.
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