2,6-Dimethyl-4,5-dihydropyridazin-3(2H)-one

2,6-二甲基-4,5-二氢哒嗪-3(2H)-酮

Also known as: 1,3-Dimethyl-6-oxo-1,4,5,6-tetrahydropyridazine, 2,6-dimethyl-4,5-dihydro-2H-pyridazin-3-one, 2,6-dimethyl-2,3,4,5-tetrahydropyridazin-3-one, 3(2H)-Pyridazinone, 4,5-dihydro-2,6-dimethyl-

2,6-Dimethyl-4,5-dihydropyridazin-3(2H)-one (CAS 39998-27-1) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C6H10N2O and a molecular weight of 126.15600 g/mol. It is also known as 1,3-Dimethyl-6-oxo-1,4,5,6-tetrahydropyridazine, 2,6-dimethyl-4,5-dihydro-2H-pyridazin-3-one and 2,6-dimethyl-2,3,4,5-tetrahydropyridazin-3-one. Key properties include a boiling point of 190.1±23.0℃ at 760 mmHg and a density of 1.13±0.1 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
39998-27-1
Jingsj CID
J-1527539-2
Molecular Formula
C6H10N2O
Chinese Name
2,6-二甲基-4,5-二氢哒嗪-3(2H)-酮
Molecular Weight
126.15600 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point190.1±23.0℃ at 760 mmHg
Density1.13±0.1 g/cm3

Frequently Asked Questions

What is the CAS number of 2,6-Dimethyl-4,5-dihydropyridazin-3(2H)-one?

The CAS number of 2,6-Dimethyl-4,5-dihydropyridazin-3(2H)-one is 39998-27-1.

What are the molecular formula and molecular weight of 2,6-Dimethyl-4,5-dihydropyridazin-3(2H)-one?

2,6-Dimethyl-4,5-dihydropyridazin-3(2H)-one has molecular formula C6H10N2O and molecular weight 126.15600 g/mol.

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

Last updated:

How to cite: Jingsj. "2,6-Dimethyl-4,5-dihydropyridazin-3(2H)-one (CAS 39998-27-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1527539-2 (accessed 2026-10-25).

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