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1-(oxiran-2-yl)ethan-1-one

Also known as: 1-(oxiran-2-yl)ethanone, 2-acetyloxirane, 1-oxiranylethanone, 3,4-epoxy-2-butanone, 1,2-epoxy-3-butanone, acetyloxirane, 1-(2-oxiranyl)ethanone

1-(oxiran-2-yl)ethan-1-one (CAS 4401-11-0) is a compound in the Ethers category listed in the Jingsj chemical database. It has the molecular formula C4H6O2 and a molecular weight of 86.08920 g/mol. Key properties include a boiling point of 45-46/30mm, a density of 1.139g/cm3 and a flash point of 36ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
4401-11-0
Jingsj CID
J-1330810-6
Molecular Formula
C4H6O2
Molecular Weight
86.08920 g/mol
Category
Ethers
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point45-46/30mm
Density1.139g/cm3
Flash Point36ºC
Exact Mass86.03680
PSA29.60000
Refractive Index1.443

Customs & Trade Information

HS Code2914190090
Summary2914190090 other acyclic ketones without other oxygen function。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 1-(oxiran-2-yl)ethan-1-one?

The CAS number of 1-(oxiran-2-yl)ethan-1-one is 4401-11-0.

What are the molecular formula and molecular weight of 1-(oxiran-2-yl)ethan-1-one?

1-(oxiran-2-yl)ethan-1-one has molecular formula C4H6O2 and molecular weight 86.08920 g/mol.

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

Last updated:

How to cite: Jingsj. "1-(oxiran-2-yl)ethan-1-one (CAS 4401-11-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1330810-6 (accessed 2026-11-06).

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