6-(4-Methoxyphenyl)pyridazin-3(2H)-one

Also known as: p-Anisylpyridazone, 6-(4-Methoxyphenyl)-2H-pyridazin-3-one, 6-(4-Methoxyphenyl)-3(2H)-pyridazinone, 6-(p-Methoxyphenyl)-3(2H)-pyridazinone, 3-Hydroxy-6-(4-methoxyphenyl)pyridazine, 6-(4-methoxyphenyl)-2,3-dihydropyridazin-3-one, 3(2H)-Pyridazinone, 6-(4-methoxyphenyl)-

6-(4-Methoxyphenyl)pyridazin-3(2H)-one (CAS 2166-33-8) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C11H10N2O2 and a molecular weight of 202.20900 g/mol. Key properties include a melting point of 188-189 °C and a density of 1.22±0.1 g/cm3(Predicted). No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 2166-33-8
Jingsj CID: J-1119049-1
Molecular Formula: C₁₁H₁₀N₂O₂
Molecular Weight: 202.20900 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	188-189 °C
Density	1.22±0.1 g/cm3(Predicted)
Exact Mass	202.07400
PSA	54.98000
LogP	1.44550

Customs & Trade Information

HS Code	2933990090
Summary	2933990090. 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 6-(4-Methoxyphenyl)pyridazin-3(2H)-one?

The CAS number of 6-(4-Methoxyphenyl)pyridazin-3(2H)-one is 2166-33-8.

What are the molecular formula and molecular weight of 6-(4-Methoxyphenyl)pyridazin-3(2H)-one?

6-(4-Methoxyphenyl)pyridazin-3(2H)-one has molecular formula C11H10N2O2 and molecular weight 202.20900 g/mol.

What are the upstream and downstream products of 6-(4-Methoxyphenyl)pyridazin-3(2H)-one?

For 6-(4-Methoxyphenyl)pyridazin-3(2H)-one, Upstream Products: 4,5-Dihydro-6-(4-methoxyphenyl)pyridazin-3(2H)-one, Glyoxylic acid, 4'-Methoxyacetophenone; Downstream Products: 3-chloro-6-(4-methoxyphenyl)pyridazine, 6-(4-methoxyphenyl)pyridazin-3-amine, 6-(4-hydroxyphenyl)-2H-pyridazin-3-one.

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

Last updated: 8/21/2026

How to cite: Jingsj. "6-(4-Methoxyphenyl)pyridazin-3(2H)-one (CAS 2166-33-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1119049-1 (accessed 2026-11-09).

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