4-Amino-6-methyl-2H-pyridazin-3-one

Also known as: 4-Amino-6-methylpyridazin-3(2H)-one, 4-Amino-6-methyl-3(2H)-pyridazinone, 4-Amino-2,3-dihydro-6-methyl-3-oxopyridazine, 3(2H)-Pyridazinone, 4-amino-6-methyl-, 4-amino-6-methyl-2,3-dihydropyridazin-3-one

4-Amino-6-methyl-2H-pyridazin-3-one (CAS 13925-21-8) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C5H7N3O and a molecular weight of 125.12900 g/mol. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 13925-21-8
Jingsj CID: J-1180887-0
Molecular Formula: C₅H₇N₃O
Molecular Weight: 125.12900 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Exact Mass	125.05900
PSA	71.77000
LogP	0.24170

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 4-Amino-6-methyl-2H-pyridazin-3-one?

The CAS number of 4-Amino-6-methyl-2H-pyridazin-3-one is 13925-21-8.

What are the molecular formula and molecular weight of 4-Amino-6-methyl-2H-pyridazin-3-one?

4-Amino-6-methyl-2H-pyridazin-3-one has molecular formula C5H7N3O and molecular weight 125.12900 g/mol.

What are the upstream and downstream products of 4-Amino-6-methyl-2H-pyridazin-3-one?

For 4-Amino-6-methyl-2H-pyridazin-3-one, Upstream Products: 6-Methylpyridazin-3(2H)-one, Levulinic acid, 4,5-Dihydro-6-methylpyridazin-3(2H)-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. "4-Amino-6-methyl-2H-pyridazin-3-one (CAS 13925-21-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1180887-0 (accessed 2026-11-09).

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