1-Phenyl-1H-pyrazol-3(2H)-one
Also known as: 1-Phenyl-3(2H)-pyrazolone, 1-Phenyl-3-hydroxypyrazole, 1,2-Dihydro-1-phenyl-3H-pyrazol-3-one, 1-Phenyl-1,2-dihydropyrazol-3-one, 3-Hydroxy-1-phenyl-1H-pyrazole, 1-Phenyl-4-pyrazolin-3-one
1-Phenyl-1H-pyrazol-3(2H)-one (CAS 1008-79-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H8N2O and a molecular weight of 160.173 g/mol. Key properties include a boiling point of 261.8ºC at 760mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 112.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1008-79-3
- Jingsj CID
- J-1335414-8
- Molecular Formula
- C9H8N2O
- Molecular Weight
- 160.173 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 261.8ºC at 760mmHg |
|---|---|
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 112.1ºC |
| Exact Mass | 160.063660 |
| PSA | 32.67000 |
| LogP | 2.16 |
| Vapor Pressure | 0.0113mmHg at 25°C |
| Refractive Index | 1.609 |
Customs & Trade Information
| HS Code | 2933199090 |
|---|---|
| Summary | 2933199090. other compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure. 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-Phenyl-1H-pyrazol-3(2H)-one?
The CAS number of 1-Phenyl-1H-pyrazol-3(2H)-one is 1008-79-3.
What are the molecular formula and molecular weight of 1-Phenyl-1H-pyrazol-3(2H)-one?
1-Phenyl-1H-pyrazol-3(2H)-one has molecular formula C9H8N2O and molecular weight 160.173 g/mol.
What are the upstream and downstream products of 1-Phenyl-1H-pyrazol-3(2H)-one?
For 1-Phenyl-1H-pyrazol-3(2H)-one, Downstream Products: 1,3-Diphenyl-1H-pyrazole-4-carbaldehyde, 3-(3-Chlorophenyl)-1-phenyl-1H-pyrazole-4-carbaldehyde, 2-Phenyl-4-phenylacetamido-3-pyrazolin-5-one.
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-Phenyl-1H-pyrazol-3(2H)-one (CAS 1008-79-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1335414-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.