5-Methylisoxazole

5-甲基异恶唑

Also known as: 5-Methyl-1,2-oxazole, 5-Methylisoxazol, 5-methyl-isoxazol, 5-Methyl isoxazole, Isoxazole, 5-methyl-, MFCD00003152, NSC 52269, Ai3-34641, EINECS 227-289-8

5-Methylisoxazole (CAS 5765-44-6) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C4H5NO and a molecular weight of 83.089 g/mol. It is also known as 5-Methyl-1,2-oxazole, 5-Methylisoxazol and 5-methyl-isoxazol. Key properties include a boiling point of 122.7±9.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 30.0±0.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5765-44-6
Jingsj CID
J-26888-2
Molecular Formula
C4H5NO
Chinese Name
5-甲基异恶唑
Molecular Weight
83.089 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point122.7±9.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point30.0±0.0 °C

Frequently Asked Questions

What is the CAS number of 5-Methylisoxazole?

The CAS number of 5-Methylisoxazole is 5765-44-6.

What are the molecular formula and molecular weight of 5-Methylisoxazole?

5-Methylisoxazole has molecular formula C4H5NO and molecular weight 83.089 g/mol.

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

Last updated:

How to cite: Jingsj. "5-Methylisoxazole (CAS 5765-44-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-26888-2 (accessed 2026-10-22).

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