3-Ethoxy-1-(4-nitrophenyl)-2-pyrazolin-5-one
1-(4-硝基苯基)-3-乙氧基-5-吡唑酮
Also known as: 1-(p-nitrophenyl)-3-ethoxy-5-pyrazolone, 5-ethoxy-2-(4-nitrophenyl)-4H-pyrazol-3-one, 3-ethoxy-1-(4-nitrophenyl)-5-oxo-2-pyrazoline, 5-ethoxy-2,4-dihydro-2-(4-nitrophenyl)-3H-pyrazol-3-one, 2-Pyrazolin-5-one, 3-ethoxy-1-(p-nitrophenyl)-, 3-ethoxy-1-(4-nitrophenyl)-1H-pyrazol-5(4H)-one
- CAS No.
- 4105-90-2
- Jingsj CID
- J-34169-3
- Molecular Formula
- C11H11N3O4
- Chinese Name
- 1-(4-硝基苯基)-3-乙氧基-5-吡唑酮
- Molecular Weight
- 249.22300 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
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Request a quotePhysicochemical Properties
| Melting Point | 142ºC |
|---|---|
| Boiling Point | 390.8ºC at 760 mmHg |
| Density | 1.41 g/cm3 |
Frequently Asked Questions
What is the CAS number of 3-Ethoxy-1-(4-nitrophenyl)-2-pyrazolin-5-one?
4105-90-2
What are the molecular formula and molecular weight of 3-Ethoxy-1-(4-nitrophenyl)-2-pyrazolin-5-one?
C11H11N3O4, molecular weight 249.22300 g/mol
Data compiled from public chemical databases and supplier catalogs; verify specifications with suppliers before purchase. · Last updated: 8/21/2026