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2-Benzyl-4,5-dichloropyridazin-3(2H)-one

Also known as: 2-Benzyl-4,5-dichloro-2,3-dihydropyridazin-3-one, 2-Benzyl-4,5-dichloropyridazine-3(2H)-one, 4,5-Dichloro-2-(phenylmethyl)-3(2H)-pyridazinone, EcDsbB-IN-9, OTAVA-BB BB0128630032, 2-Benzyl-4,5-dichloro-2,3-dihydropyridazinone

2-Benzyl-4,5-dichloropyridazin-3(2H)-one (CAS 41933-33-9) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C11H8Cl2N2O and a molecular weight of 255.10000 g/mol. Key properties include a melting point of 87ºC, a boiling point of 338ºC at 760 mmHg, a density of 1.38g/cm3 and a flash point of 158.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
41933-33-9
Jingsj CID
J-1554-3
Molecular Formula
C11H8Cl2N2O
Molecular Weight
255.10000 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point87ºC
Boiling Point338ºC at 760 mmHg
Density1.38g/cm3
Flash Point158.2ºC
Exact Mass254.00100
PSA34.89000
LogP2.59840
Refractive Index1.626

Activity & Biological Data

TargetIC50: 1.7 μM (EcDsbB)[1] Ki: 46 nM (EcDsbB)[1]

Customs & Trade Information

HS Code2933990090
Summary2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 2-Benzyl-4,5-dichloropyridazin-3(2H)-one?

The CAS number of 2-Benzyl-4,5-dichloropyridazin-3(2H)-one is 41933-33-9.

What are the molecular formula and molecular weight of 2-Benzyl-4,5-dichloropyridazin-3(2H)-one?

2-Benzyl-4,5-dichloropyridazin-3(2H)-one has molecular formula C11H8Cl2N2O and molecular weight 255.10000 g/mol.

What are the upstream and downstream products of 2-Benzyl-4,5-dichloropyridazin-3(2H)-one?

For 2-Benzyl-4,5-dichloropyridazin-3(2H)-one, Upstream Products: 4,5-Dichloro-3(2H)-pyridazinone, Benzyl bromide, Benzyl chloride; Downstream Products: 2-Benzyl-5-chloro-4-methoxy-3(2H)-pyridazinone, 2-Benzyl-5-iodopyridazin-3(2H)-one, 2-benzyl-4-chloro-5-methoxypyridazin-3(2H)-one.

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-Benzyl-4,5-dichloropyridazin-3(2H)-one (CAS 41933-33-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1554-3 (accessed 2026-11-09).

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