5-Methyl-6-(4-methylphenyl)-2,3-dihydropyridazin-3-one

5-甲基-6-(4-甲基苯基)-2,3-二氢哒嗪-3-酮

Also known as: 3(2H)-Pyridazinone, 5-methyl-6-(4-methylphenyl)-, 5-methyl-6-(4-methylphenyl)-2,3-dihydropyridazin-3-one

5-Methyl-6-(4-methylphenyl)-2,3-dihydropyridazin-3-one (CAS 21004-65-9) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C12H12N2O and a molecular weight of 200.24 g/mol. It is also known as 3(2H)-Pyridazinone, 5-methyl-6-(4-methylphenyl)- and 5-methyl-6-(4-methylphenyl)-2,3-dihydropyridazin-3-one. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 21004-65-9
Jingsj CID: J-1028290-2
Molecular Formula: C₁₂H₁₂N₂O
Chinese Name: 5-甲基-6-(4-甲基苯基)-2,3-二氢哒嗪-3-酮
Molecular Weight: 200.24 g/mol
Category: Ketones
Last updated: 8/21/2026

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Frequently Asked Questions

What is the CAS number of 5-Methyl-6-(4-methylphenyl)-2,3-dihydropyridazin-3-one?

The CAS number of 5-Methyl-6-(4-methylphenyl)-2,3-dihydropyridazin-3-one is 21004-65-9.

What are the molecular formula and molecular weight of 5-Methyl-6-(4-methylphenyl)-2,3-dihydropyridazin-3-one?

5-Methyl-6-(4-methylphenyl)-2,3-dihydropyridazin-3-one has molecular formula C12H12N2O and molecular weight 200.24 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "5-Methyl-6-(4-methylphenyl)-2,3-dihydropyridazin-3-one (CAS 21004-65-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1028290-2 (accessed 2026-10-24).

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