1-(1,2-Oxazol-5-yl)ethanone

1-(5-异恶唑基)乙酮

Also known as: 1-(5-isoxazolyl)ethanone, 1-(isoxazol-5-yl)ethanone, 1-(isoxazol-5-yl)ethan-1-one, 5-acetylisoxazole, Ethanone, 1-(5-isoxazolyl)-, Ketone, 5-isoxazolyl methyl (7CI)

1-(1,2-Oxazol-5-yl)ethanone (CAS 88511-38-0) 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. It is also known as 1-(5-isoxazolyl)ethanone, 1-(isoxazol-5-yl)ethanone and 1-(isoxazol-5-yl)ethan-1-one. Key properties include a boiling point of 205.5±13.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 78.1±19.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
88511-38-0
Jingsj CID
J-1185825-0
Molecular Formula
C5H5NO2
Chinese Name
1-(5-异恶唑基)乙酮
Molecular Weight
111.099 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point205.5±13.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point78.1±19.8 °C

Frequently Asked Questions

What is the CAS number of 1-(1,2-Oxazol-5-yl)ethanone?

The CAS number of 1-(1,2-Oxazol-5-yl)ethanone is 88511-38-0.

What are the molecular formula and molecular weight of 1-(1,2-Oxazol-5-yl)ethanone?

1-(1,2-Oxazol-5-yl)ethanone has molecular formula C5H5NO2 and molecular weight 111.099 g/mol.

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

Last updated:

How to cite: Jingsj. "1-(1,2-Oxazol-5-yl)ethanone (CAS 88511-38-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1185825-0 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.