Cyclooctene oxide
Cyclooctene oxide (CAS: 286-62-4), with the molecular formula C8H14O and a molecular weight of 126.20 g/mol, is a cyclic epoxide. It serves as a versatile building block in organic synthesis, particularly for introducing oxygenated functionalities into complex molecules. This compound is valuable in the preparation of various intermediates and specialty chemicals, finding utility across research and industrial chemical applications.
- IUPAC
- 9-Oxabicyclo[6.1.0]nonane,Epoxycyclooctane
- Synonyms
- 9-Oxabicyclo[6.1.0]nonaneEpoxycyclooctane

Organic Synthesis Intermediate
Cyclooctene oxide is employed as a reactive intermediate in the synthesis of more complex organic molecules. Its epoxide ring can be opened under various conditions to introduce diols, amino alcohols, and other functionalised cyclooctane derivatives.
Polymer Chemistry
As a monomer or co-monomer, epoxides like cyclooctene oxide can participate in ring-opening polymerisation reactions. This can lead to the formation of polyesters or polyethers with specific properties, depending on the co-reactants and reaction conditions.
Research and Development
In R&D settings, cyclooctene oxide is utilised for exploring novel synthetic pathways and developing new chemical entities. Its defined structure and reactivity make it a useful tool for structure-activity relationship studies.
| Molecular weight | 126.20 |
|---|---|
| Empirical formula | C8H14O |
| Assay | 99% |
| Boiling point | 55 °C/5 mmHg(lit.) |
| Melting point | 53-56 °C(lit.) |


Hazard statements
- H228Flammable solid
- H302Harmful if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Flash point | 63 °C / 145.4 °F |
| Transport (UN / ADR) | UN 1325 4.1 / PGII |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | F,Xn |
| Risk statements (R) | 11-22-36/38 |
| Safety statements (S) | 26 |
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 Cyclooctene oxide used for?
+
Cyclooctene oxide is used as a building block in organic synthesis, for preparing intermediates, and in research and development for exploring new chemical pathways. It is also used in polymer chemistry.
What are the CAS number and formula for Cyclooctene oxide?
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The CAS number for Cyclooctene oxide is 286-62-4, and its molecular formula is C8H14O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Cyclooctene oxide with a purity of 99%. This is a technical/research grade, and TSS does not represent it as USP, BP, or EP grade.
How should Cyclooctene oxide be handled safely?
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Cyclooctene oxide is flammable and harmful if swallowed, causing skin and serious eye irritation. Handle with appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves. Ensure good ventilation and keep away from heat, sparks, and open flames.
Is Cyclooctene oxide a controlled substance?
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The provided data does not indicate that Cyclooctene oxide is a controlled substance.
How is Cyclooctene oxide packed and exported?
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Cyclooctene oxide is shipped under UN 1325 classification, indicating it is a flammable solid, Class 4.1, Packing Group II. Specific packing details and export procedures are available upon request.
How can I request a sample or quote for Cyclooctene oxide?
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To request a sample or a quote for Cyclooctene oxide, please contact the Tech Serve Solutions sales team through our official website or designated inquiry channels.
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