6-(4-Aminophenyl)-5-methyl-4,5-dihydro-3(2H)-pyridazinone

Also known as: 3(2H)-Pyridazinone, 6-(4-aminophenyl)-4,5-dihydro-5-methyl-, 3(2H)-Pyridazinone, 6-(4-aminophenyl)-5-methyl-, 6-(4-Amino-phenyl)-5-methyl-4,5-dihydro-2H-pyridazin-3-one, 6-(4-Aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone, 6-(4-Aminophenyl)-5-methyl-4,5-dihydro-2H-pyridazin-3-one, 6-(4-Aminophenyl)-5-methyl-4,5-dihydro-3(2H)-pyridazinone, Levosimendan Impurity 5, MFCD01692712

6-(4-Aminophenyl)-5-methyl-4,5-dihydro-3(2H)-pyridazinone (CAS 36725-28-7) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C11H13N3O and a molecular weight of 203.240 g/mol. Key properties include a melting point of 196 °C and a density of 1.3±0.1 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 36725-28-7
Jingsj CID: J-1062197-3
Molecular Formula: C₁₁H₁₃N₃O
Molecular Weight: 203.240 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	196 °C
Density	1.3±0.1 g/cm3
Exact Mass	203.105865
PSA	71.77000
LogP	-0.75
Refractive Index	1.653
Storage Conditions	2-8°C

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-Aminophenyl)-5-methyl-4,5-dihydro-3(2H)-pyridazinone?

The CAS number of 6-(4-Aminophenyl)-5-methyl-4,5-dihydro-3(2H)-pyridazinone is 36725-28-7.

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

6-(4-Aminophenyl)-5-methyl-4,5-dihydro-3(2H)-pyridazinone has molecular formula C11H13N3O and molecular weight 203.240 g/mol.

What are the upstream and downstream products of 6-(4-Aminophenyl)-5-methyl-4,5-dihydro-3(2H)-pyridazinone?

For 6-(4-Aminophenyl)-5-methyl-4,5-dihydro-3(2H)-pyridazinone, Upstream Products: Diethyl 2-(1-(4-acetamidophenyl)-1-oxopropan-2-yl)malonate, 4-(4-Acetamidophenyl)-4-oxobutanoic acid, N-[4-(2-chloropropanoyl)phenyl]acetamide; Downstream Products: Simendan, Levosimendan, Amipizone.

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-Aminophenyl)-5-methyl-4,5-dihydro-3(2H)-pyridazinone (CAS 36725-28-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1062197-3 (accessed 2026-11-09).

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