4,5-Dihydro-6-methyl-3(2H)-pyridazinone hydrate

4,5-二氢-6-甲基-3(2H)-哒嗪酮水合物

Also known as: 4,5-Dihydro-6-methyl-3(2H)-pyridazinone monohydrate, 4,5-Dihydro-6-methylpyridazin-3(2H)-one hydrate

4,5-Dihydro-6-methyl-3(2H)-pyridazinone hydrate (CAS 205744-83-8) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C5H10N2O2 and a molecular weight of 130.14500 g/mol. It is also known as 4,5-Dihydro-6-methyl-3(2H)-pyridazinone monohydrate and 4,5-Dihydro-6-methylpyridazin-3(2H)-one hydrate. Key property: a melting point of 79-83ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 205744-83-8
Jingsj CID: J-21340-0
Molecular Formula: C₅H₁₀N₂O₂
Chinese Name: 4,5-二氢-6-甲基-3(2H)-哒嗪酮水合物
Molecular Weight: 130.14500 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	79-83ºC

Frequently Asked Questions

What is the CAS number of 4,5-Dihydro-6-methyl-3(2H)-pyridazinone hydrate?

The CAS number of 4,5-Dihydro-6-methyl-3(2H)-pyridazinone hydrate is 205744-83-8.

What are the molecular formula and molecular weight of 4,5-Dihydro-6-methyl-3(2H)-pyridazinone hydrate?

4,5-Dihydro-6-methyl-3(2H)-pyridazinone hydrate has molecular formula C5H10N2O2 and molecular weight 130.14500 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. "4,5-Dihydro-6-methyl-3(2H)-pyridazinone hydrate (CAS 205744-83-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-21340-0 (accessed 2026-10-24).

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