Ethyl pentafluoropropionate
Ethyl pentafluoropropionate (CAS 426-65-3), with the molecular formula C2F5CO2C2H5 and a molar mass of 192.08 g/mol, is a valuable fluorinated organic compound. It serves as a key building block in chemical synthesis, particularly for introducing the pentafluoroethyl group. Its applications include the direct synthesis of organocopper reagents and the preparation of complex fluorinated heterocyclic compounds, making it essential for advanced materials and pharmaceutical research.

Pentafluoroethyl Source
Utilised as a source for the pentafluoroethyl group in the direct synthesis of organometallic compounds, such as pentafluoroethyl copper (CuC2F5).
Fluorinated Heterocycle Synthesis
Employed in the synthesis of specialised fluorinated molecules, including the preparation of C-6 substituted fluoroalkenyl 2,4-dimethoxypyrimidine derivatives.
Organic Building Block
Serves as a versatile building block in organic synthesis for the introduction of fluorinated moieties into larger molecular structures.
| Molecular weight | 192.08 |
|---|---|
| Linear formula | C2F5CO2C2H5 |
| Assay | 98% |
| Boiling point | 75-76 °C(lit.) |
| Density | 1.299 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.301(lit.) |
| Application | Ethyl pentafluoropropionate has been used:• as pentafluoroethyl source in the direct synthesis of pentafluoroethyl copper (CuC2F5)1• in the synthesis of C-6 substituted fluoroalkenyl 2,4-dimethoxypyrimidine derivative2 |


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), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 2 °C / 35.6 °F |
| Transport (UN / ADR) | UN 3272 3 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,Xi |
| Risk statements (R) | 11-36/37/38 |
| Safety statements (S) | 16-26-33-36 |
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 Ethyl pentafluoropropionate used for?
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Ethyl pentafluoropropionate is used as a pentafluoroethyl source in synthesising organocopper reagents and in the preparation of fluoroalkenyl pyrimidine derivatives, acting as a key building block in organic synthesis.
What are the CAS number and formula for Ethyl pentafluoropropionate?
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The CAS number for Ethyl pentafluoropropionate is 426-65-3, and its linear formula is C2F5CO2C2H5.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Ethyl pentafluoropropionate with an assay of 98%. We do not represent this product as USP, BP, or EP grade.
What are the primary safety hazards associated with Ethyl pentafluoropropionate?
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Ethyl pentafluoropropionate is highly flammable (H225) and can cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Handle with appropriate personal protective equipment in a well-ventilated area.
How is Ethyl pentafluoropropionate packed and shipped?
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Ethyl pentafluoropropionate is shipped according to UN 3272, Hazard Class 3, Packing Group II regulations. Specific packaging details are available upon request.
How can I request a quote or sample for Ethyl pentafluoropropionate?
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To request a quote or a sample of Ethyl pentafluoropropionate, please contact our sales team through the website or by phone.
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