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Ethers, epoxides and acetals

1,2-Epoxycyclooctane

Also known as 9-Oxabicyclo[6.1.0]nonane, Cyclooctene oxide, Epoxycyclooctane

CAS 286-62-4Formula C8H14OMolar mass 126.20 g/molEC 206-010-3
GHS signal word: Danger. Pictograms: Flammable, Harmful or irritant
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1,2-Epoxycyclooctane chemical structure, C8H14O, CAS 286-62-4
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
286-62-4
Formula
C8H14O
Molar mass
126.20 g/mol
Physical form
Solid
HS code
291090
Category
Ethers, epoxides and acetals
Illustrative photo, drums, an IBC tote and sacks in a chemical warehouse in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is 1,2-Epoxycyclooctane?

Plain description, key identifiers and synonyms

1,2-Epoxycyclooctane is a chemical substance with the molecular formula C8H14O and a molar mass of 126.20 g/mol. Its CAS registry number is 286-62-4. The IUPAC name is 9-oxabicyclo[6.1.0]nonane.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
9-oxabicyclo[6.1.0]nonane
CAS number
286-62-4 CAS number cross-checkedOther or deprecated CAS: 4925-71-7
EC numbers
206-010-3, 225-554-2
Molecular formula
C8H14O
UNII
27GZC8IY6U
MDL number
MFCD00005164
InChIKey
MELPJGOMEMRMPL-UHFFFAOYSA-N
InChI
InChI=1S/C8H14O/c1-2-4-6-8-7(9-8)5-3-1/h7-8H,1-6H2
SMILES (canonical and isomeric)
C1CCCC2C(O2)CC1

Synonyms

  • 9-Oxabicyclo[6.1.0]nonane
  • Cyclooctene oxide
  • Epoxycyclooctane
  • Cyclooctene, oxide
  • Cyclooctane, 1,2-epoxy-
  • 9-Oxabicyclo(6.1.0)nonane
  • cyclooctane oxide
  • Cyclooctene epoxide
  • 9-Oxabicyclo(6.1.0)nonane (8CI)
  • Cyclooctane, 1,2epoxy
  • 9Oxabicyclo(6.1.0)nonane (8CI)
  • 9Oxabicyclo(6.1.0)nonane (8CI)(9CI)
  • 9-Oxabicyclo(6.1.0)nonane (8CI)(9CI)
  • Cycloocteneoxide
  • 9-oxabicyclo[6.1.0] nonane
  • 9-Oxabicyclo[6.1.0]nonane, cis-
  • cis-9-Oxabicyclo(6.1.0)nonane
  • Cyclooctane,2-epoxy-
  • 1,2-cyclooctene oxide
  • Cyclooctene oxide, 99%
  • 9-oxa-bicyclo[6.1.0]nonane
  • 9-Oxabicyclo[6.1.0]nonane, E

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

Physical form
Solidexp.

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
126.20 g/molcalc.
Exact mass
126.1045 Dacalc.
LogP (octanol/water)
2.11calc.
Topological polar surface area
12.53 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
0calc.
Heavy atoms
9calc.
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, C1CCCC2OC2CC1

C1CCCC2OC2CC1

2 rings, 9 atoms. This chemical is the scaffold itself.

14 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS02: Flammable
Flammable
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H228Flammable solid.
  • H302Harmful if swallowed.
  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
Precautionary statements (17)
  • P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
  • P240Ground and bond container and receiving equipment.
  • P241Use explosion-proof electrical, ventilating and lighting equipment.
  • 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.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P302 + P352If on skin: Wash with plenty of water.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P370 + P378In case of fire: Use appropriate media to extinguish.
  • 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

1,2-Epoxycyclooctane suppliers

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1,2-Epoxycyclooctane 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

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code 1,2-Epoxycyclooctane 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 1,2-Epoxycyclooctane is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 1,2-Epoxycyclooctane, based on the data on this page

What is 1,2-Epoxycyclooctane?

1,2-Epoxycyclooctane is a chemical substance with the molecular formula C8H14O and a molar mass of 126.20 g/mol. Its CAS registry number is 286-62-4. The IUPAC name is 9-oxabicyclo[6.1.0]nonane.

What is the CAS number of 1,2-Epoxycyclooctane?

The CAS registry number of 1,2-Epoxycyclooctane is 286-62-4. Other or deprecated CAS numbers: 4925-71-7.

What is the molecular formula and weight of 1,2-Epoxycyclooctane?

The molecular formula of 1,2-Epoxycyclooctane is C8H14O and its molar mass is 126.20 g/mol.

What is 1,2-Epoxycyclooctane used for?

Known uses and roles of 1,2-Epoxycyclooctane include building blocks in research and laboratory and screening compounds in research and laboratory.

Is 1,2-Epoxycyclooctane hazardous?

1,2-Epoxycyclooctane carries the GHS signal word "Danger". Main hazards: flammable solid, harmful if swallowed, causes skin irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of 1,2-Epoxycyclooctane?

1,2-Epoxycyclooctane 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 1,2-Epoxycyclooctane?

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What is the price of 1,2-Epoxycyclooctane?

Suppliers quote 1,2-Epoxycyclooctane 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 1,2-Epoxycyclooctane

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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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