1-Methyl-1,2-dihydropyridazine-3,6-dione

1-甲基-1,2-二氢-3,6-哒嗪二酮

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. It is also known as 3,6-Pyridazinedione,1,2-dihydro-1-methyl-, 1-Methyl-3,6-(1H,2H)pyridazinedione and 6-Hydroxy-2-methyl-3(2H)-pyridazinone. 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-38087-6

Molecular Formula

C₅H₆N₂O₂

Chinese Name

1-甲基-1,2-二氢-3,6-哒嗪二酮

Molecular Weight

126.11300 g/mol

Category

Ketones

Last updated

8/21/2026