Tetrabutylammonium trifluoromethanesulfonate
Tetrabutylammonium trifluoromethanesulfonate (CAS 35895-70-6) is an ammonium salt with the linear formula (CH3CH2CH2CH2)4N(CF3SO3) and a molecular weight of 391.53 g/mol. This compound serves as a valuable reagent in chemical synthesis, often employed as a phase transfer catalyst. Its properties make it suitable for various laboratory applications requiring specific ionic characteristics.
- IUPAC
- Tetrabutylammonium triflate,Trifluoromethanesulfonic acid tetrabutylammonium salt
- Synonyms
- Tetrabutylammonium triflateTrifluoromethanesulfonic acid tetrabutylammonium salt

Phase Transfer Catalysis
Tetrabutylammonium trifluoromethanesulfonate acts as an effective phase transfer catalyst, facilitating reactions between reagents in immiscible phases. This is particularly useful for enhancing reaction rates and yields in organic synthesis.
Chemical Synthesis Reagent
As a synthetic reagent, this ammonium salt is utilised in various organic transformations. Its triflate anion is a good leaving group, and the tetrabutylammonium cation provides solubility in organic solvents.
Electrolyte Component
In certain electrochemical applications, tetrabutylammonium triflate can be used as a component of electrolytes. Its ionic nature and stability contribute to its utility in such systems.
| Molecular weight | 391.53 |
|---|---|
| Linear formula | (CH3CH2CH2CH2)4N(CF3SO3) |
| Assay | ≥99.0% (T) |
| Melting point | 110-114 °C112-113 °C(lit.) |

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) | 26-36 |
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 Tetrabutylammonium trifluoromethanesulfonate used for?
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Tetrabutylammonium trifluoromethanesulfonate is primarily used as a phase transfer catalyst and a reagent in chemical synthesis. It can also find applications as an electrolyte component.
What is the CAS number and chemical formula for Tetrabutylammonium trifluoromethanesulfonate?
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The CAS number is 35895-70-6 and the linear formula is (CH3CH2CH2CH2)4N(CF3SO3).
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Tetrabutylammonium trifluoromethanesulfonate with an assay of ≥99.0% (T). We do not represent this product as meeting USP, BP, or EP pharmacopoeial standards.
How should Tetrabutylammonium trifluoromethanesulfonate be handled?
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Handle with appropriate personal protective equipment including a dust mask type N95 (US), eyeshields, and gloves. Avoid breathing dust. In case of contact with eyes, rinse cautiously with water for several minutes, removing contact lenses if present and easy to do. Continue rinsing. This compound may cause skin irritation, eye irritation, and respiratory irritation.
Is Tetrabutylammonium trifluoromethanesulfonate a controlled substance?
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The provided data does not indicate that Tetrabutylammonium trifluoromethanesulfonate is a controlled substance.
How is this chemical packed, shipped, or exported?
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Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, ensuring appropriate packaging and adherence to international shipping regulations for compounds like Tetrabutylammonium trifluoromethanesulfonate.
How can I request a sample or quote?
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Please contact our sales department via the website or by phone to request a sample or a quotation for Tetrabutylammonium trifluoromethanesulfonate.
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