4,4-Dibromo-3-methyl-2-pyrazolin-5-one
4,4-二溴-3-甲基-2-吡唑啉-5-酮
Also known as: 4,4-Dibromo-5-methyl-2,4-dihydro-3H-pyrazol-3-one, 4,4-Dibromo-3-methyl-1H-pyrazol-5(4H)-one, 4,4-Dibromo-3-methyl-1,4-dihydro-pyrazol-5-one, 3-methyl-4,4-dibromo-2-pyrazolin-5-one, 4,4-dibromo-3-methyl-1H-pyrazolin-5-one
- CAS No.
- 33549-66-5
- Jingsj CID
- J-21196-9
- Molecular Formula
- C4H4Br2N2O
- Chinese Name
- 4,4-二溴-3-甲基-2-吡唑啉-5-酮
- Molecular Weight
- 255.89500 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
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Request a quotePhysicochemical Properties
| Melting Point | 129-132ºC |
|---|---|
| Density | 2.44g/cm3 |
Frequently Asked Questions
What is the CAS number of 4,4-Dibromo-3-methyl-2-pyrazolin-5-one?
33549-66-5
What are the molecular formula and molecular weight of 4,4-Dibromo-3-methyl-2-pyrazolin-5-one?
C4H4Br2N2O, molecular weight 255.89500 g/mol
Data compiled from public chemical databases and supplier catalogs; verify specifications with suppliers before purchase. · Last updated: 8/21/2026