1-(1,3-Oxazol-2-yl)ethanone

Also known as: 1-(2-Oxazolyl)ethanone, 1-(Oxazol-2-yl)ethan-1-one, 2-Acetyloxazole, 2-Acetyl oxazole, Ethanone, 1-(2-oxazolyl)-, 1-Oxazol-2-yl-ethanone, acetyl oxazole

1-(1,3-Oxazol-2-yl)ethanone (CAS 77311-07-0) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C5H5NO2 and a molecular weight of 111.099 g/mol. Key properties include a boiling point of 177.4±23.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 61.1±22.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 77311-07-0
Jingsj CID: J-1130027-9
Molecular Formula: C₅H₅NO₂
Molecular Weight: 111.099 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	177.4±23.0 °C at 760 mmHg
Density	1.1±0.1 g/cm3
Flash Point	61.1±22.6 °C
Exact Mass	111.032028
PSA	43.10000
LogP	-0.21
Vapor Pressure	1.0±0.3 mmHg at 25°C
Refractive Index	1.462

Customs & Trade Information

HS Code	2934999090
Summary	2934999090. other heterocyclic compounds. 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-(1,3-Oxazol-2-yl)ethanone?

The CAS number of 1-(1,3-Oxazol-2-yl)ethanone is 77311-07-0.

What are the molecular formula and molecular weight of 1-(1,3-Oxazol-2-yl)ethanone?

1-(1,3-Oxazol-2-yl)ethanone has molecular formula C5H5NO2 and molecular weight 111.099 g/mol.

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-(1,3-Oxazol-2-yl)ethanone (CAS 77311-07-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1130027-9 (accessed 2026-11-09).

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