1-Methyl-1H-pyrazol-5(4H)-one
1-甲基-5(4H)-吡唑酮
Also known as: 1-Methyl-1H-pyrazol-5(4H)-one, 1-Methyl-5-pyrazolone, 1-methyl-4,5-dihydro-1H-pyrazol-5-one, 2-Methyl-2,4-dihydropyrazol-3-one, 2-methyl-4H-pyrazol-3-one, 3H-Pyrazol-3-one, 2,4-dihydro-2-methyl-, 1-Methyl-2-pyrazolin-5-one
1-Methyl-1H-pyrazol-5(4H)-one (CAS 10234-66-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H6N2O and a molecular weight of 98.10320 g/mol. It is also known as 1-Methyl-5-pyrazolone, 1-methyl-4,5-dihydro-1H-pyrazol-5-one and 2-Methyl-2,4-dihydropyrazol-3-one. Key property: a boiling point of 136.9°C at 760 mmHg. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 10234-66-9
- Jingsj CID
- J-1507741-5
- Molecular Formula
- C4H6N2O
- Chinese Name
- 1-甲基-5(4H)-吡唑酮
- Molecular Weight
- 98.10320 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 136.9°C at 760 mmHg |
|---|
Frequently Asked Questions
What is the CAS number of 1-Methyl-1H-pyrazol-5(4H)-one?
The CAS number of 1-Methyl-1H-pyrazol-5(4H)-one is 10234-66-9.
What are the molecular formula and molecular weight of 1-Methyl-1H-pyrazol-5(4H)-one?
1-Methyl-1H-pyrazol-5(4H)-one has molecular formula C4H6N2O and molecular weight 98.10320 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1-Methyl-1H-pyrazol-5(4H)-one (CAS 10234-66-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1507741-5 (accessed 2026-10-24).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.