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Ethers, epoxides and acetals

Cyclohexene oxide

Also known as 7-Oxabicyclo[4.1.0]heptane, 1,2-Epoxycyclohexane, Cyclohexene epoxide

CAS 286-20-4Formula C6H10OMolar mass 98.15 g/molEC 206-007-7
GHS signal word: Danger. Pictograms: Flammable, Corrosive, Acute toxicity (severe), Harmful or irritant 9 suppliers listed
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Cyclohexene oxide chemical structure, C6H10O, CAS 286-20-4
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Colorless liquid
Melting point
>-10
Boiling point
129 to 130
Density
0.967 @ 25 °C/4 °C
Flash point
81 °C
HS code
291090
Category
Ethers, epoxides and acetals
Illustrative photo, 200 litre steel drums of liquid in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is Cyclohexene oxide?

Plain description, key identifiers and synonyms

Cyclohexene oxide is a cycloaliphatic epoxide.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
7-oxabicyclo[4.1.0]heptane
CAS number
286-20-4 CAS number cross-checkedOther or deprecated CAS: 25702-20-9
EC number
206-007-7
Molecular formula
C6H10O
UNII
1XYE04C550
MDL number
MFCD00005162
InChIKey
ZWAJLVLEBYIOTI-UHFFFAOYSA-N
InChI
InChI=1S/C6H10O/c1-2-4-6-5(3-1)7-6/h5-6H,1-4H2
SMILES (canonical and isomeric)
C1CCC2C(C1)O2

Synonyms

  • 7-Oxabicyclo[4.1.0]heptane
  • 1,2-Epoxycyclohexane
  • Cyclohexene epoxide
  • Tetramethyleneoxirane
  • Cyclohexylene oxide
  • Cyclohexene 1-oxide
  • Cyclohexane oxide
  • Cyclohexane, 1,2-epoxy-
  • 1,2-Cyclohexene oxide
  • Cyclohexene-1-oxide
  • CCHO
  • 7-Oxabicyclo(4.1.0)heptane
  • Cyclohexene, oxide
  • Cyclohexeneoxide
  • 7-oxa-bicyclo[4.1.0]heptane
  • Cyclohexene oxide, 98%
  • Cyclohexane,2-epoxy-
  • epoxycyclohexane
  • cis-Cyclohexene Oxide
  • cyclohexenoxide
  • CyHO
  • 1,2-epoxy-cyclohexane
  • 7-oxa-bicyclo[4.1.0] heptane
  • Bicyclo[4.1.0]heptane, 7-oxa-

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Appearance
Colorless liquidexp.
Odour
STRONG ODORexp.
Melting point
>-10exp.
Boiling point
129 to 130exp.
Density
0.967 @ 25 °C/4 °Cexp.
Flash point
81 °Cexp.
Solubility
SOL IN ALC, ETHER, ACETONE, INSOL IN WATERexp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
98.15 g/molcalc.
Exact mass
98.0732 Dacalc.
LogP (octanol/water)
1.33calc.
Topological polar surface area
12.53 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
0calc.
Heavy atoms
7calc.
Rings
2calc.
Aromatic rings
0calc.
Fraction sp3 carbons
1calc.
Formal charge
0calc.
Stereocentres
2calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, C1CCC2OC2C1

C1CCC2OC2C1

2 rings, 7 atoms. This chemical is the scaffold itself.

314 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS02: Flammable
Flammable
GHS05: Corrosive
Corrosive
GHS06: Acute toxicity (severe)
Acute toxicity (severe)
GHS07: Harmful or irritant
Harmful or irritant
GHS08: Serious health hazard
Serious health hazard

Hazard statements

  • H226Flammable liquid and vapour.
  • H302Harmful if swallowed.
  • H311Toxic in contact with skin.
  • H312Harmful in contact with skin.
  • H314Causes severe skin burns and eye damage.
  • H318Causes serious eye damage.
  • H331Toxic if inhaled.
  • H341Suspected of causing genetic defects.
Precautionary statements (35)
  • P203Obtain, read and follow all safety instructions before use.
  • P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
  • P233Keep container tightly closed.
  • P240Ground and bond container and receiving equipment.
  • P241Use explosion-proof electrical, ventilating and lighting equipment.
  • P242Use non-sparking tools.
  • P243Take action to prevent static discharges.
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P262Do not get in eyes, on skin, or on clothing.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P301 + P330 + P331If swallowed: Rinse mouth. Do not induce vomiting.
  • P302 + P352If on skin: Wash with plenty of water.
  • P302 + P361 + P354If on skin: Take off immediately all contaminated clothing. Immediately rinse with water for several minutes.
  • P303 + P361 + P353If on skin (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P354 + P338If in eyes: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P316Get emergency medical help immediately.
  • P317Get medical help.
  • P318If exposed or concerned, get medical advice.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P361 + P364Take off immediately all contaminated clothing. And wash it before reuse.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P363Wash contaminated clothing before reuse.
  • P370 + P378In case of fire: Use appropriate media to extinguish.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P403 + P235Store in a well-ventilated place. Keep cool.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Cyclohexene oxide suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 9 suppliers
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Where suppliers are based

9 suppliers in 4 countries

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Cyclohexene oxide price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Chemical intermediate.

Chemical intermediate, eg, for epoxy resins & photoreactive polymers.

How it is made

Probably by reaction of cyclohexene with a peroxy acid, eg, peracetic acid

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Cyclohexene oxide is traded under.

HS 2910.90Indicative HS code

Epoxides with a three-membered ring and their halogenated, sulphonated, nitrated or nitrosated derivatives…

World exports in 2024
$467M
−2.9% vs 2023, imports $501M
2019 to 2024
Top exporters
  1. Netherlands24.5%
  2. China19.7%
  3. Japan18.8%
Top importers
  1. United States17.6%
  2. Germany16.3%
  3. China10.8%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Cyclohexene oxide is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Cyclohexene oxide, based on the data on this page

What is Cyclohexene oxide?

Cyclohexene oxide is a cycloaliphatic epoxide.

What is the CAS number of Cyclohexene oxide?

The CAS registry number of Cyclohexene oxide is 286-20-4. Other or deprecated CAS numbers: 25702-20-9.

What is the molecular formula and weight of Cyclohexene oxide?

The molecular formula of Cyclohexene oxide is C6H10O and its molar mass is 98.15 g/mol.

What is Cyclohexene oxide used for?

Chemical intermediate. Chemical intermediate, eg, for epoxy resins & photoreactive polymers.

Is Cyclohexene oxide hazardous?

Cyclohexene oxide carries the GHS signal word "Danger". Main hazards: flammable liquid and vapour, harmful if swallowed, toxic in contact with skin. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Cyclohexene oxide?

Cyclohexene oxide is usually classified under HS code 291090 (Epoxides, epoxyalcohols, epoxyphenols and epoxyethers, with a three-membered ring, and…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Cyclohexene oxide?

CompoundList lists 9 suppliers of Cyclohexene oxide in China, Canada, India and United States. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Cyclohexene oxide in India?

1 supplier in India list Cyclohexene oxide on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Cyclohexene oxide?

Suppliers quote Cyclohexene oxide on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Cyclohexene oxide

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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