1,2-Epoxyoctadecane

Also known as: 2-Hexadecyloxirane, 1-Octadecene oxide, 1,2-Octadecylene oxide, Octadecene epoxide, 1,2-Octadecane oxide

1,2-Epoxyoctadecane (CAS 7390-81-0) is a compound in the Ethers category listed in the Jingsj chemical database. It has the molecular formula C18H36O and a molecular weight of 268.47800 g/mol. Key properties include a melting point of 33-35°C, a boiling point of 146-148°C 1mm, a density of 0.857 g/cm3 and a flash point of 176°C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 7390-81-0
Jingsj CID: J-3702-2
Molecular Formula: C₁₈H₃₆O
Molecular Weight: 268.47800 g/mol
Category: Ethers
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	33-35°C
Boiling Point	146-148°C 1mm
Density	0.857 g/cm3
Flash Point	176°C
Exact Mass	268.27700
PSA	12.53000
LogP	6.25660
Refractive Index	1.455

Customs & Trade Information

HS Code	2910900090
Summary	2910900090. epoxides, epoxyalcohols, epoxyphenols and epoxyethers, with a three-membered ring, and their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0%

Frequently Asked Questions

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

The CAS number of 1,2-Epoxyoctadecane is 7390-81-0.

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

1,2-Epoxyoctadecane has molecular formula C18H36O and molecular weight 268.47800 g/mol.

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

For 1,2-Epoxyoctadecane, Upstream Products: Octadec-1-ene, acetic acid; Downstream Products: octadecane-1,2-diol, octadecanal, Octadec-1-ene.

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-Epoxyoctadecane (CAS 7390-81-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-3702-2 (accessed 2026-11-07).

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