2,3,4,5,6-Pentafluorostyrene
2,3,4,5,6-Pentafluorostyrene (CAS 653-34-9) is a fluorinated aromatic compound with the linear formula C6F5CH=CH2 and a molecular weight of 194.10 g/mol. This reactive monomer is utilised as a building block in organic synthesis and for the creation of specialised polymers and materials. Its unique chemical structure offers distinct properties for advanced applications in research and development.
- Synonyms
- 5,6-Pentafluorostyrene653-34-9C6F5CH=CH2

Polymer Synthesis
2,3,4,5,6-Pentafluorostyrene serves as a monomer in the synthesis of fluorinated polymers, which can exhibit enhanced thermal stability, chemical resistance, and unique dielectric properties.
Organic Synthesis Building Block
This compound is a valuable intermediate for introducing the pentafluorophenyl group into more complex organic molecules through various chemical reactions.
Materials Science Research
Its fluorinated nature makes it a candidate for research into advanced materials with specific surface properties or electronic characteristics.
| Molecular weight | 194.10 |
|---|---|
| Linear formula | C6F5CH=CH2 |
| Assay | ≥98.0% (GC) |
| Boiling point | 62-63 °C/50 mmHg(lit.) |
| Density | 1.406 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.446(lit.)n20/D 1.446 |
| Storage temperature | −20°C |
| Contains / stabiliser | 0.1% p-tert-butylcatechol as inhibitor |
| Impurities tested | ≤0.1% water |

Hazard statements
- H226Flammable liquid and vapour
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 34 °C / 93.2 °F |
| Transport (UN / ADR) | UN 1993C 3 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Risk statements (R) | 10 |
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 2,3,4,5,6-Pentafluorostyrene used for?
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2,3,4,5,6-Pentafluorostyrene is primarily used as a monomer in polymer synthesis and as a building block in organic synthesis for creating specialised fluorinated materials and compounds.
What are the CAS number and molecular formula for 2,3,4,5,6-Pentafluorostyrene?
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The CAS number is 653-34-9 and the linear formula is C6F5CH=CH2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2,3,4,5,6-Pentafluorostyrene with an assay of ≥98.0% by GC. This product is not supplied as USP, BP, EP, or pharmaceutical grade.
What are the safety considerations for handling 2,3,4,5,6-Pentafluorostyrene?
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2,3,4,5,6-Pentafluorostyrene is a flammable liquid and vapour (H226). It requires handling with appropriate personal protective equipment, including eyeshields, gloves, and a suitable respirator, in well-ventilated areas. Store at -20°C.
How is 2,3,4,5,6-Pentafluorostyrene packed and shipped?
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This chemical is typically packed in accordance with UN 1993, Class 3, Packing Group III regulations for safe transport. It is exported by Tech Serve Solutions globally.
How can I request a sample or quote for 2,3,4,5,6-Pentafluorostyrene?
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Please contact our sales team via our website or direct inquiry to request a sample or obtain a quotation for 2,3,4,5,6-Pentafluorostyrene.
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