Bis(2,2,2-trifluoroethyl) ether
Bis(2,2,2-trifluoroethyl) ether (CAS: 333-36-8), with the molecular formula (CF3CH2)2O, is a specialised organic compound. This ether possesses a molecular weight of 182.06 g/mol. Its primary application is as a functional ingredient in advanced chemical synthesis. It has been notably utilised in research to mitigate the self-discharge rates in lithium-sulfur (Li-S) battery cells, particularly those employing sulfur cathodes with varying sulfur loadings. This highlights its role in energy storage material development.
- IUPAC
- 2,2,2-Trifluoroethyl ether,Flurothyl
- Synonyms
- 333-36-8(CF3CH2)2O2,2,2-Trifluoroethyl etherFlurothyl

Lithium-Sulfur Battery Research
Bis(2,2,2-trifluoroethyl) ether has been employed to reduce the self-discharge of Li-S cells. This application is relevant for both low- and high-sulfur-loading sulfur cathodes, contributing to the stability and performance of next-generation batteries.
Organic Synthesis
As an organic building block, this trifluoroethyl ether serves as a valuable reagent in complex chemical synthesis pathways. Its unique structure allows for the introduction of fluorinated ethyl groups into target molecules.
Research and Development
This compound is utilised in various R&D settings for exploring novel chemical reactions and material properties. Its presence in research literature indicates its utility in advancing scientific understanding across different chemical disciplines.
| Molecular weight | 182.06 |
|---|---|
| Linear formula | (CF3CH2)2O |
| Assay | 99% |
| Boiling point | 62-63 °C(lit.) |
| Density | 1.404 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.300(lit.) |
| Application | Bis(2,2,2-trifluoroethyl) ether was used to diminish self-discharge of Li-S cells having both low- and high-sulfur-loading sulfur cathodes1. |


Hazard statements
- H225Highly flammable liquid and vapour
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US) |
|---|---|
| Flash point | 1 °C / 33.8 °F |
| Transport (UN / ADR) | UN 3271 3 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,Xi |
| Risk statements (R) | 11-36/37/38 |
| Safety statements (S) | 16-26-36 |
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 Bis(2,2,2-trifluoroethyl) ether used for?
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Bis(2,2,2-trifluoroethyl) ether is used in research for applications such as diminishing self-discharge of Li-S cells and as a building block in chemical synthesis. It is also employed in broader research and development initiatives.
What are the CAS number and chemical formula for Bis(2,2,2-trifluoroethyl) ether?
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The CAS number is 333-36-8, and its linear formula is (CF3CH2)2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Bis(2,2,2-trifluoroethyl) ether with an assay of 99%. This is a technical or research grade chemical; TSS does not represent it as USP, BP, EP or pharmacopoeia grade.
How should Bis(2,2,2-trifluoroethyl) ether be handled safely?
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Bis(2,2,2-trifluoroethyl) ether is a highly flammable liquid and vapour (H225) and causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Handle with appropriate personal protective equipment, including eyeshields, face shields, and gloves, in a well-ventilated area. Keep away from heat, sparks, and open flames (P210).
Is Bis(2,2,2-trifluoroethyl) ether a controlled substance?
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The provided data does not indicate that Bis(2,2,2-trifluoroethyl) ether is a controlled substance.
How is Bis(2,2,2-trifluoroethyl) ether packed and exported?
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Bis(2,2,2-trifluoroethyl) ether is packed and shipped according to its hazard classification (UN 3271 3 / PGII). As a global supplier, Tech Serve Solutions exports this chemical worldwide, adhering to all relevant international shipping regulations.
How can I request a quote or sample of Bis(2,2,2-trifluoroethyl) ether?
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To request a quote or a sample, please contact our sales team via the website or by phone. Provide the product name, CAS number (333-36-8), and the desired quantity.
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