Dimethylketene

二甲基乙烯酮

Also known as: Dimethylketene, 2-Methyl-1-propen-1-one, 2-Methylprop-1-en-1-one, 1,1-Dimethylketene, Ketene, dimethyl-, 1-Propen-1-one, 2-methyl- (9CI), Isobuten-1-one, Methyl-1-propene-1-one, 2-: (Dimethylketene)

Dimethylketene (CAS 598-26-5) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C4H6O and a molecular weight of 70.08980 g/mol. It is also known as 2-Methyl-1-propen-1-one, 2-Methylprop-1-en-1-one and 1,1-Dimethylketene. Key properties include a boiling point of 34ºC at 760mmHg and a density of 0.775 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
598-26-5
Jingsj CID
J-847791-6
Molecular Formula
C4H6O
Chinese Name
二甲基乙烯酮
Molecular Weight
70.08980 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point34ºC at 760mmHg
Density0.775 g/cm3

Frequently Asked Questions

What is the CAS number of Dimethylketene?

The CAS number of Dimethylketene is 598-26-5.

What are the molecular formula and molecular weight of Dimethylketene?

Dimethylketene has molecular formula C4H6O and molecular weight 70.08980 g/mol.

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

Last updated:

How to cite: Jingsj. "Dimethylketene (CAS 598-26-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-847791-6 (accessed 2026-10-22).

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