4-Vinyl-1-cyclohexene
4-Vinyl-1-cyclohexene (CAS: 100-40-3), with the molecular formula C8H12 and a molar mass of 108.18 g/mol, is a cyclic olefin. This chemical is primarily utilised as a monomer in polymer science and materials science. Its reactive vinyl group allows for polymerisation, leading to various specialised polymers. It is supplied by Tech Serve Solutions with an assay of 99%, containing p-tert-butylcatechol as an inhibitor.
- IUPAC
- 4-Ethenyl-1-cyclohexene,NSC 15760
- Synonyms
- 4-Ethenyl-1-cyclohexeneNSC 15760

Monomer for Polymer Synthesis
4-Vinyl-1-cyclohexene serves as a versatile monomer in the synthesis of polymers and copolymers. Its cyclohexene ring structure can influence the properties of the resulting polymer, such as thermal stability and mechanical strength.
Materials Science Research
It is employed in materials science for developing novel polymeric materials with specific characteristics. Research applications may involve its use in creating speciality plastics, resins, or coatings.
Intermediate in Organic Synthesis
The compound can act as an intermediate in various organic synthesis pathways. Its distinct structure allows for further chemical modifications to produce more complex molecules.
| Molecular weight | 108.18 |
|---|---|
| Linear formula | C6H9CH=CH2 |
| Assay | 99% |
| Boiling point | 126-127 °C(lit.) |
| Density | 0.832 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.463(lit.) |
| Vapour pressure | 10.2 mmHg (25 °C) |
| Melting point | −101 °C(lit.) |
| Vapour density | 3.76 (vs air) |
| Autoignition temp | 517 °F |
| Contains / stabiliser | 25-200 ppm p-tert-butylcatechol as inhibitor |



Hazard statements
- H225Highly flammable liquid and vapour
- H304May be fatal if swallowed and enters airways
- H315Causes skin irritation
- H351Suspected of causing cancer
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P281Use personal protective equipment as required
- P301IF SWALLOWED
- P331Do NOT induce vomiting
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 16 °C / 60.8 °F |
| Transport (UN / ADR) | UN 1993BF 3 / PGII |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | F,Xn |
| Risk statements (R) | 11-38-40-65 |
| Safety statements (S) | 16-33-36/37 |
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-Vinyl-1-cyclohexene used for?
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4-Vinyl-1-cyclohexene is primarily used as a monomer in polymer and materials science, and as an intermediate in organic synthesis.
What is the CAS number and formula for 4-Vinyl-1-cyclohexene?
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The CAS number is 100-40-3 and the molecular formula is C8H12.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Vinyl-1-cyclohexene with an assay of 99%. This is a technical/research grade material and is not represented as USP, BP, or EP.
How should 4-Vinyl-1-cyclohexene be handled safely?
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4-Vinyl-1-cyclohexene is a flammable liquid and vapour, is harmful if swallowed and enters airways, causes skin irritation, and is suspected of causing cancer. Handle with appropriate personal protective equipment, including eyeshields, gloves, and a suitable respirator, and keep away from heat and open flames. Consult the Safety Data Sheet for full handling precautions.
Is 4-Vinyl-1-cyclohexene a controlled substance?
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Based on the provided data, 4-Vinyl-1-cyclohexene is not indicated as a controlled substance.
How is 4-Vinyl-1-cyclohexene packed, shipped, or exported?
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4-Vinyl-1-cyclohexene is shipped as UN 1993, BF 3 / PGII. Specific packaging details are available upon request, adhering to international shipping regulations.
How can I request a sample or quote for 4-Vinyl-1-cyclohexene?
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To request a sample or quote, please contact Tech Serve Solutions directly through our website or sales department, providing your specific requirements.
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