Heptadecafluorooctanesulfonic acid tetraethylammonium salt
Heptadecafluorooctanesulfonic acid tetraethylammonium salt (CAS 56773-42-3), with the molecular formula CF3(CF2)6CF2SO3N(C2H5)4 and a molecular weight of 629.37 g/mol, is a perfluorinated compound utilised in chemical synthesis. Its properties make it suitable as a phase transfer catalyst and a synthetic reagent in various laboratory and industrial applications requiring specific fluorinated intermediates.
- IUPAC
- Perfluorooctanesulfonic acid tetraethylammonium salt

Phase Transfer Catalyst
This tetraethylammonium salt can facilitate reactions between reactants in immiscible phases. Its fluorinated nature may offer unique solubility and catalytic properties in specific synthetic pathways.
Synthetic Reagent
As a fluorinated ammonium salt, it serves as a valuable building block or reagent in the synthesis of complex organic molecules, particularly where perfluorinated chains are desired.
Chemical Synthesis
It is employed in various chemical synthesis processes, contributing to the development of novel materials or intermediates within research and development settings.
| Molecular weight | 629.37 |
|---|---|
| Linear formula | CF3(CF2)6CF2SO3N(C2H5)4 |
| Assay | ≥98.0% (T) |
| Melting point | 183-190 °C184-190 °C(lit.) |

Hazard statements
- H301Toxic if swallowed
Precautionary statements
- P301IF SWALLOWED
| Protective equipment | Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 2811 6.1 / PGIII |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | T |
| Risk statements (R) | 25 |
| Safety statements (S) | 45 |
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 Heptadecafluorooctanesulfonic acid tetraethylammonium salt used for?
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Heptadecafluorooctanesulfonic acid tetraethylammonium salt is primarily used as a phase transfer catalyst and a synthetic reagent in chemical synthesis applications.
What is the CAS number and formula for Heptadecafluorooctanesulfonic acid tetraethylammonium salt?
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The CAS number is 56773-42-3 and the linear formula is CF3(CF2)6CF2SO3N(C2H5)4.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Heptadecafluorooctanesulfonic acid tetraethylammonium salt with an assay of ≥98.0% (T). TSS does not represent this product as USP, BP, EP, or other pharmacopoeia grades unless explicitly stated.
How should Heptadecafluorooctanesulfonic acid tetraethylammonium salt be handled?
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This compound is classified as acutely toxic if swallowed (H301) and requires careful handling. Recommended personal protective equipment includes eyeshields, faceshields, gloves, and P2 (EN 143) respirator cartridges. Always consult the Safety Data Sheet (SDS) for detailed handling and emergency procedures.
Is this chemical suitable for export?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals and laboratory reagents.
How can I request a sample or quote?
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Please contact our sales team via the website or direct phone line to request a sample or a formal quotation for Heptadecafluorooctanesulfonic acid tetraethylammonium salt.
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