1-Methyl-1,2-dihydropyridazine-3,6-dione
Also known as: 3,6-Pyridazinedione,1,2-dihydro-1-methyl-, 1-Methyl-3,6-(1H,2H)pyridazinedione, 6-Hydroxy-2-methyl-3(2H)-pyridazinone, N-Methylmaleic hydrazide, 2-Methyl-6-hydroxy-3(2H)-pyridazinone, 3-Hydroxy-1-methylpyridazin-6(1H)-one
1-Methyl-1,2-dihydropyridazine-3,6-dione (CAS 5436-01-1) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C5H6N2O2 and a molecular weight of 126.11300 g/mol. Key properties include a melting point of 210-212 °C, a boiling point of 260.1ºC at 760mmHg, a density of 1.263g/cm3 and a flash point of 111.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 5436-01-1
- Jingsj CID
- J-38087-0
- Molecular Formula
- C5H6N2O2
- Molecular Weight
- 126.11300 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 210-212 °C |
|---|---|
| Boiling Point | 260.1ºC at 760mmHg |
| Density | 1.263g/cm3 |
| Flash Point | 111.1ºC |
| Exact Mass | 126.04300 |
| PSA | 55.12000 |
| Refractive Index | 1.511 |
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 1-Methyl-1,2-dihydropyridazine-3,6-dione?
The CAS number of 1-Methyl-1,2-dihydropyridazine-3,6-dione is 5436-01-1.
What are the molecular formula and molecular weight of 1-Methyl-1,2-dihydropyridazine-3,6-dione?
1-Methyl-1,2-dihydropyridazine-3,6-dione has molecular formula C5H6N2O2 and molecular weight 126.11300 g/mol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1-Methyl-1,2-dihydropyridazine-3,6-dione (CAS 5436-01-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-38087-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.