3,5-Difluoroethylbenzene
3,5-Difluoroethylbenzene (CAS: 117358-52-8) is a fluorinated aromatic hydrocarbon with the molecular formula C8H8F2 and a molecular weight of 142.15 g/mol. Supplied with an assay of 97%, this compound serves as a valuable building block in organic synthesis and chemical research. Its difluorinated phenyl ring offers unique reactivity for creating complex molecules, particularly in the development of pharmaceuticals and advanced materials.
- IUPAC
- 1-Ethyl-3,5-difluorobenzene,5-Ethyl-1,3-difluorobenzene
- Synonyms
- 1-Ethyl-3,5-difluorobenzene5-Ethyl-1,3-difluorobenzene

Organic Synthesis Intermediate
3,5-Difluoroethylbenzene is employed as a key intermediate in the synthesis of complex organic molecules. Its fluorinated aromatic structure facilitates specific chemical transformations and the introduction of fluorine atoms into target compounds.
Pharmaceutical Research
This compound is utilised in medicinal chemistry research for the development of novel pharmaceutical agents. The presence of fluorine can modulate the pharmacokinetic and pharmacodynamic properties of drug candidates.
Materials Science
It serves as a building block in the creation of advanced materials, including polymers and liquid crystals, where the unique electronic and physical properties conferred by fluorine are advantageous.
| Molecular weight | 142.15 |
|---|---|
| Empirical formula | C8H8F2 |
| Assay | 97% |
| Density | 1.065 g/mL at 25 °C |
| Refractive index | n20/D 1.452 |


Hazard statements
- H226Flammable liquid and vapour
- H302Harmful if swallowed
| Flash point | 31 °C / 87.8 °F |
|---|---|
| Transport (UN / ADR) | UN 1993C 3 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 10-22 |
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 3,5-Difluoroethylbenzene primarily used for?
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3,5-Difluoroethylbenzene is primarily used as a building block in organic synthesis, particularly in the development of new pharmaceuticals and advanced materials where its difluorinated aromatic structure is advantageous.
What is the CAS number and molecular formula for 3,5-Difluoroethylbenzene?
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The CAS number for 3,5-Difluoroethylbenzene is 117358-52-8, and its molecular formula is C8H8F2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3,5-Difluoroethylbenzene with an assay of 97%. We do not represent this product as USP, BP, EP, or other pharmacopoeial grades unless explicitly stated in the product specifications.
What are the key safety considerations when handling 3,5-Difluoroethylbenzene?
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3,5-Difluoroethylbenzene is a flammable liquid and vapour (H226) and is harmful if swallowed (H302). Handle with appropriate precautions in a well-ventilated area, away from ignition sources, and use personal protective equipment.
Is this product available for export?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including 3,5-Difluoroethylbenzene.
How can I request a sample or quote for 3,5-Difluoroethylbenzene?
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Please contact our sales team through the website or call us directly to request a sample or a quotation for 3,5-Difluoroethylbenzene.
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