4-Fluorostyrene
4-Fluorostyrene (CAS: 405-99-2), with the molecular formula C8H7F and a molar mass of 122.14 g/mol, is a functionalized styrene monomer. It serves as a valuable building block in polymer science and materials science, enabling the synthesis of specialized polymers with unique properties. This compound is primarily utilised in research and development settings for creating advanced materials.

Monomer for Specialty Polymers
4-Fluorostyrene is employed as a monomer in the synthesis of fluorinated polymers. These polymers can exhibit enhanced thermal stability, chemical resistance, and specific optical or electrical properties compared to their non-fluorinated counterparts.
Intermediate in Organic Synthesis
As a functionalized styrene derivative, it can participate in various organic reactions, serving as an intermediate for the creation of more complex molecules within research and development laboratories.
Materials Science Research
This compound is utilised in materials science for the development of novel polymers and copolymers, exploring their potential in advanced applications requiring specific performance characteristics.
| Molecular weight | 122.14 |
|---|---|
| Linear formula | H2C=CHC6H4F |
| Assay | 99% |
| Boiling point | 67 °C/50 mmHg(lit.) |
| Density | 1.024 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.514(lit.) |
| Storage temperature | 2-8°C |
| Contains / stabiliser | tert-butylcatechol as inhibitor |

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 | 35 °C / 95 °F |
| Transport (UN / ADR) | UN 1993C 3 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Risk statements (R) | 10 |
| Safety statements (S) | 23-24/25 |
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 4-Fluorostyrene used for?
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4-Fluorostyrene is primarily used as a monomer in polymer science for creating specialty fluorinated polymers and as an intermediate in organic synthesis for research and development purposes.
What is the CAS number and formula for 4-Fluorostyrene?
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The CAS number for 4-Fluorostyrene is 405-99-2, and its linear formula is H2C=CHC6H4F.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Fluorostyrene with an assay of 99%. We do not represent this product as USP, BP, or EP grade.
How should 4-Fluorostyrene be handled and stored safely?
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4-Fluorostyrene is a flammable liquid and vapour (H226). Handle with appropriate personal protective equipment, including eyeshields, faceshields, and gloves. Store in a well-ventilated area, away from ignition sources, at temperatures between 2-8°C, and it contains tert-butylcatechol as an inhibitor.
How is 4-Fluorostyrene packed, shipped, and exported?
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4-Fluorostyrene is packed according to relevant shipping regulations for flammable liquids. Tech Serve Solutions exports globally, adhering to all international shipping and customs requirements.
How can I request a sample or a quote for 4-Fluorostyrene?
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To request a sample or a quote for 4-Fluorostyrene, please contact our sales department through the website or by phone, providing your specific requirements and shipping details.
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