1-(5-Methyl-4-isoxazolyl)-1-ethanone

1-(5-甲基-4-异噁唑基)-乙酮

Also known as: 1-(5-Methylisoxazol-4-yl)ethanone, 1-(5-Methylisoxazol-4-yl)ethan-1-one, 1-(5-methyl-1,2-oxazol-4-yl)ethanone, 1-(5-methyl-1,2-oxazol-4-yl)ethan-1-one, 1-(5-methyl-4-isoxazolyl)ethanone, 4-Acetyl-5-methylisoxazole, 4-Acetyl-5-methylisoxazol, methylisoxazolylethanone, Ethanone, 1-(5-methyl-4-isoxazolyl)-, AKOS BC-0829

1-(5-Methyl-4-isoxazolyl)-1-ethanone (CAS 6497-21-8) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C6H7NO2 and a molecular weight of 125.12500 g/mol. It is also known as 1-(5-Methylisoxazol-4-yl)ethanone, 1-(5-Methylisoxazol-4-yl)ethan-1-one and 1-(5-methyl-1,2-oxazol-4-yl)ethanone. Key properties include a melting point of 26-28ºC, a boiling point of 54ºC 0,25mm, a density of 1.104 g/cm3 and a flash point of 87.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
6497-21-8
Jingsj CID
J-1178198-5
Molecular Formula
C6H7NO2
Chinese Name
1-(5-甲基-4-异噁唑基)-乙酮
Molecular Weight
125.12500 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point26-28ºC
Boiling Point54ºC 0,25mm
Density1.104 g/cm3
Flash Point87.4ºC

Frequently Asked Questions

What is the CAS number of 1-(5-Methyl-4-isoxazolyl)-1-ethanone?

The CAS number of 1-(5-Methyl-4-isoxazolyl)-1-ethanone is 6497-21-8.

What are the molecular formula and molecular weight of 1-(5-Methyl-4-isoxazolyl)-1-ethanone?

1-(5-Methyl-4-isoxazolyl)-1-ethanone has molecular formula C6H7NO2 and molecular weight 125.12500 g/mol.

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

Last updated:

How to cite: Jingsj. "1-(5-Methyl-4-isoxazolyl)-1-ethanone (CAS 6497-21-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1178198-5 (accessed 2026-10-22).

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