1,2-epoxycycloheptane

Also known as: 8-oxabicyclo[5.1.0]octane, cycloheptene oxide, epoxycycloheptane, cycloheptene epoxide, cis-cycloheptene oxide, cycloheptane oxide, cyclohepteneoxide, cycloheptenoxide

1,2-epoxycycloheptane (CAS 286-45-3) is a compound in the Ethers category listed in the Jingsj chemical database. It has the molecular formula C7H12O and a molecular weight of 112.17000 g/mol. Key properties include a boiling point of 148.9ºC at 760mmHg, a density of 0.983g/cm3 and a flash point of 30ºC. It is classified under GHS with signal word Danger and hazard statements H226 — Flammable liquid and vapour, H302 — Harmful if swallowed and H312 — Harmful in contact with skin. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 286-45-3
Jingsj CID: J-1328337-7
Molecular Formula: C₇H₁₂O
Molecular Weight: 112.17000 g/mol
Category: Ethers
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	148.9ºC at 760mmHg
Density	0.983g/cm3
Flash Point	30ºC
Exact Mass	112.08900
PSA	12.53000
LogP	1.71790
Vapor Pressure	5.24mmHg at 25°C
Refractive Index	n20/D 1.464

GHS Safety & Compliance

Flammable / Corrosion / IrritantSignal word: Danger

H226 — Flammable liquid and vapour
H302 — Harmful if swallowed
H312 — Harmful in contact with skin
H314 — Causes severe skin burns and eye damage
H332 — Harmful if inhaled

Customs & Trade Information

HS Code	2932999099
Summary	2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

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

The CAS number of 1,2-epoxycycloheptane is 286-45-3.

What are the molecular formula and molecular weight of 1,2-epoxycycloheptane?

1,2-epoxycycloheptane has molecular formula C7H12O and molecular weight 112.17000 g/mol.

Is 1,2-epoxycycloheptane hazardous?

1,2-epoxycycloheptane has GHS signal word Danger and hazard statements H226 — Flammable liquid and vapour; H302 — Harmful if swallowed; H312 — Harmful in contact with skin.

What are the upstream and downstream products of 1,2-epoxycycloheptane?

For 1,2-epoxycycloheptane, Upstream Products: cycloheptene, 1-hexene, Methylcyclopentene; Downstream Products: Cycloheptanol, Cyclohexanecarboxaldehyde, Cycloheptanone.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "1,2-epoxycycloheptane (CAS 286-45-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1328337-7 (accessed 2026-11-07).

Data for reference only; verify product details with suppliers before purchase.