4-Methyl-2-pentanone oxime

Also known as: Methyl isobutyl ketoxime, Isobutyl methyl ketoxime, Isopropylacetone oxime, N-(4-methylpentan-2-ylidene)hydroxylamine, N-hydroxy-4-methylpentan-2-imine, 4-Methyl-2-pentanone oxime, mixture of syn and anti

4-Methyl-2-pentanone oxime (CAS 105-44-2) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C6H13NO and a molecular weight of 115.17400 g/mol. Key properties include a boiling point of 179.8ºC at 760 mmHg, a density of 0.89 g/cm3 and a flash point of 88.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 105-44-2
Jingsj CID: J-1439125-4
Molecular Formula: C₆H₁₃NO
Molecular Weight: 115.17400 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	179.8ºC at 760 mmHg
Density	0.89 g/cm3
Flash Point	88.1ºC
Exact Mass	115.10000
PSA	32.59000
LogP	1.88260
Vapor Pressure	0.434mmHg at 25°C
Refractive Index	0.88

Customs & Trade Information

HS Code	2928000090
Summary	2928000090 other organic derivatives of hydrazine or of hydroxylamine VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 4-Methyl-2-pentanone oxime?

The CAS number of 4-Methyl-2-pentanone oxime is 105-44-2.

What are the molecular formula and molecular weight of 4-Methyl-2-pentanone oxime?

4-Methyl-2-pentanone oxime has molecular formula C6H13NO and molecular weight 115.17400 g/mol.

What are the upstream and downstream products of 4-Methyl-2-pentanone oxime?

For 4-Methyl-2-pentanone oxime, Upstream Products: 4-Methyl-2-pentanone, isohexane; Downstream Products: 4-Methylpentanoic acid, 4-Methyl-2-pentanone, N,N'-Bis(2,4,6-trichlorophenyl)urea.

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. "4-Methyl-2-pentanone oxime (CAS 105-44-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1439125-4 (accessed 2026-11-09).

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