4,5-dichloro-2-(4-methoxyphenyl)sulfonylpyridazin-3-one

4,5-二氯-2-[(4-甲氧基苯基)磺酰基]-3(2H)-哒嗪酮

Also known as: 4,5-dichloro-2-[(4-methoxyphenyl)sulfonyl]-3(2H)-pyridazinone, 3(2H)-Pyridazinone, 4,5-dichloro-2-[(4-methoxyphenyl)sulfonyl]-, 4,5-Dichloro-2-((4-methoxyphenyl)sulfonyl)-3(2H)-pyridazinone, 4,5-dichloro-2-(4-methoxyphenyl)sulfonyl-pyridazin-3-one

4,5-dichloro-2-(4-methoxyphenyl)sulfonylpyridazin-3-one (CAS 155164-59-3) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C11H8Cl2N2O4S and a molecular weight of 335.16300 g/mol. It is also known as 4,5-dichloro-2-[(4-methoxyphenyl)sulfonyl]-3(2H)-pyridazinone, 3(2H)-Pyridazinone, 4,5-dichloro-2-[(4-methoxyphenyl)sulfonyl]- and 4,5-Dichloro-2-((4-methoxyphenyl)sulfonyl)-3(2H)-pyridazinone. Key properties include a boiling point of 443.3ºC at 760mmHg, a density of 1.59g/cm3 and a flash point of 221.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
155164-59-3
Jingsj CID
J-994701-0
Molecular Formula
C11H8Cl2N2O4S
Chinese Name
4,5-二氯-2-[(4-甲氧基苯基)磺酰基]-3(2H)-哒嗪酮
Molecular Weight
335.16300 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point443.3ºC at 760mmHg
Density1.59g/cm3
Flash Point221.9ºC

Frequently Asked Questions

What is the CAS number of 4,5-dichloro-2-(4-methoxyphenyl)sulfonylpyridazin-3-one?

The CAS number of 4,5-dichloro-2-(4-methoxyphenyl)sulfonylpyridazin-3-one is 155164-59-3.

What are the molecular formula and molecular weight of 4,5-dichloro-2-(4-methoxyphenyl)sulfonylpyridazin-3-one?

4,5-dichloro-2-(4-methoxyphenyl)sulfonylpyridazin-3-one has molecular formula C11H8Cl2N2O4S and molecular weight 335.16300 g/mol.

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

Last updated:

How to cite: Jingsj. "4,5-dichloro-2-(4-methoxyphenyl)sulfonylpyridazin-3-one (CAS 155164-59-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-994701-0 (accessed 2026-10-23).

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