1-(3-Methylisoxazol-5-yl)ethanone

3-甲基-5-乙酰基异恶唑

Also known as: 1-(3-Methyl-5-Isoxazolyl) Ethanone, Ethanone, 1-(3-methyl-5-isoxazolyl)-, Methyl 3-methyl-5-isoxazolyl ketone, 1-(3-methylisoxazol-5-yl)ethanone, 3-Methyl-5-acetylisoxazole, 1-(3-methyl-1,2-oxazol-5-yl)ethanone, 1-(3-methylisoxazol-5-yl)ethan-1-one

1-(3-Methylisoxazol-5-yl)ethanone (CAS 55086-61-8) is a compound in the Organic Compounds 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-(3-Methyl-5-Isoxazolyl) Ethanone, Ethanone, 1-(3-methyl-5-isoxazolyl)- and Methyl 3-methyl-5-isoxazolyl ketone. Key properties include a melting point of 73-75ºC, a boiling point of 226.529ºC at 760 mmHg, a density of 1.105 g/cm3 and a flash point of 90.802ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 55086-61-8
Jingsj CID: J-998187-2
Molecular Formula: C₆H₇NO₂
Chinese Name: 3-甲基-5-乙酰基异恶唑
Molecular Weight: 125.12500 g/mol
Category: Organic Compounds
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	73-75ºC
Boiling Point	226.529ºC at 760 mmHg
Density	1.105 g/cm3
Flash Point	90.802ºC

Frequently Asked Questions

What is the CAS number of 1-(3-Methylisoxazol-5-yl)ethanone?

The CAS number of 1-(3-Methylisoxazol-5-yl)ethanone is 55086-61-8.

What are the molecular formula and molecular weight of 1-(3-Methylisoxazol-5-yl)ethanone?

1-(3-Methylisoxazol-5-yl)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: 8/21/2026

How to cite: Jingsj. "1-(3-Methylisoxazol-5-yl)ethanone (CAS 55086-61-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-998187-2 (accessed 2026-10-22).

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