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2-acetyl-4,5-dichloro-3(2H)-pyridazinone

Also known as: 2-acetyl-4,5-dichloropyridazin-3-one, 2-acetyl-4,5-dichloropyridazin-3(2H)-one, 3(2H)-Pyridazinone, 2-acetyl-4,5-dichloro-, 4,5-dichloro-2-acetyl-3(2H)-pyridazinone

2-acetyl-4,5-dichloro-3(2H)-pyridazinone (CAS 155164-63-9) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C6H4Cl2N2O2 and a molecular weight of 207.01400 g/mol. Key properties include a boiling point of 252.1ºC at 760 mmHg, a density of 1.61g/cm3 and a flash point of 106.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
155164-63-9
Jingsj CID
J-1062233-0
Molecular Formula
C6H4Cl2N2O2
Molecular Weight
207.01400 g/mol
Category
Organohalogen Compounds
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point252.1ºC at 760 mmHg
Density1.61g/cm3
Flash Point106.3ºC
Exact Mass205.96500
PSA51.96000
LogP1.21020
Vapor Pressure0.0197mmHg at 25°C
Refractive Index1.624

Frequently Asked Questions

What is the CAS number of 2-acetyl-4,5-dichloro-3(2H)-pyridazinone?

The CAS number of 2-acetyl-4,5-dichloro-3(2H)-pyridazinone is 155164-63-9.

What are the molecular formula and molecular weight of 2-acetyl-4,5-dichloro-3(2H)-pyridazinone?

2-acetyl-4,5-dichloro-3(2H)-pyridazinone has molecular formula C6H4Cl2N2O2 and molecular weight 207.01400 g/mol.

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

Last updated:

How to cite: Jingsj. "2-acetyl-4,5-dichloro-3(2H)-pyridazinone (CAS 155164-63-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1062233-0 (accessed 2026-11-09).

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