4-chloro-5-(1-methylhydrazinyl)-2-(p-tolyl)pyridazin-3(2H)-one

4-氯-5-(1-甲基肼基)-2-(4-甲基苯基)-2,3-二氢哒嗪-3-酮

Also known as: 5-[amino(methyl)amino]-4-chloro-2-(4-methylphenyl)pyridazin-3-one, 4-chloro-5-(1-methylhydrazino)-2-(4-methylphenyl)pyridazin-3(2H)-one, 4-chloro-2-(p-tolyl)-5-(1-methylhydrazino)pyridazin-3(2H)-one, 4-chloro-5-(N-methyl-hydrazino)-2-p-tolyl-2H-pyridazin-3-one, 3(2H)-Pyridazinone, 4-chloro-5-(1-methylhydrazinyl)-2-(4-methylphenyl)-

4-chloro-5-(1-methylhydrazinyl)-2-(p-tolyl)pyridazin-3(2H)-one (CAS 41933-01-1) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C12H13ClN4O and a molecular weight of 264.71100 g/mol. It is also known as 5-[amino(methyl)amino]-4-chloro-2-(4-methylphenyl)pyridazin-3-one, 4-chloro-5-(1-methylhydrazino)-2-(4-methylphenyl)pyridazin-3(2H)-one and 4-chloro-2-(p-tolyl)-5-(1-methylhydrazino)pyridazin-3(2H)-one. Key properties include a melting point of 136ºC, a boiling point of 381.9ºC at 760 mmHg, a density of 1.34g/cm3 and a flash point of 184.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
41933-01-1
Jingsj CID
J-1502210-1
Molecular Formula
C12H13ClN4O
Chinese Name
4-氯-5-(1-甲基肼基)-2-(4-甲基苯基)-2,3-二氢哒嗪-3-酮
Molecular Weight
264.71100 g/mol
Category
Organic Bases
Last updated
8/21/2026

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Physicochemical Properties

Melting Point136ºC
Boiling Point381.9ºC at 760 mmHg
Density1.34g/cm3
Flash Point184.7ºC

Frequently Asked Questions

What is the CAS number of 4-chloro-5-(1-methylhydrazinyl)-2-(p-tolyl)pyridazin-3(2H)-one?

The CAS number of 4-chloro-5-(1-methylhydrazinyl)-2-(p-tolyl)pyridazin-3(2H)-one is 41933-01-1.

What are the molecular formula and molecular weight of 4-chloro-5-(1-methylhydrazinyl)-2-(p-tolyl)pyridazin-3(2H)-one?

4-chloro-5-(1-methylhydrazinyl)-2-(p-tolyl)pyridazin-3(2H)-one has molecular formula C12H13ClN4O and molecular weight 264.71100 g/mol.

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

Last updated:

How to cite: Jingsj. "4-chloro-5-(1-methylhydrazinyl)-2-(p-tolyl)pyridazin-3(2H)-one (CAS 41933-01-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1502210-1 (accessed 2026-10-25).

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