4-acetyl-5-methyl-1-phenylpyrazole
Also known as: 1-(5-methyl-1-phenyl-1H-pyrazol-4-yl)ethanone, 1-(5-methyl-1-phenylpyrazol-4-yl)ethanone, 4-acetyl-5-methyl-1-phenyl-1H-pyrazole, methyl 5-methyl-1-phenyl-4-pyrazolyl ketone, methyl 5-methyl-1-phenylpyrazole-4-yl ketone, NSC 140728
4-acetyl-5-methyl-1-phenylpyrazole (CAS 6123-63-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C12H12N2O and a molecular weight of 200.23600 g/mol. Key properties include a melting point of 103-105°C, a boiling point of 506.6ºC at 760 mmHg, a density of 1.181g/cm3 and a flash point of 260.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 6123-63-3
- Jingsj CID
- J-1453095-1
- Molecular Formula
- C12H12N2O
- Molecular Weight
- 200.23600 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 103-105°C |
|---|---|
| Boiling Point | 506.6ºC at 760 mmHg |
| Density | 1.181g/cm3 |
| Flash Point | 260.2ºC |
| Exact Mass | 200.09500 |
| PSA | 34.89000 |
| LogP | 2.38330 |
| Refractive Index | 1.581 |
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 4-acetyl-5-methyl-1-phenylpyrazole?
The CAS number of 4-acetyl-5-methyl-1-phenylpyrazole is 6123-63-3.
What are the molecular formula and molecular weight of 4-acetyl-5-methyl-1-phenylpyrazole?
4-acetyl-5-methyl-1-phenylpyrazole has molecular formula C12H12N2O and molecular weight 200.23600 g/mol.
What are the upstream and downstream products of 4-acetyl-5-methyl-1-phenylpyrazole?
For 4-acetyl-5-methyl-1-phenylpyrazole, Upstream Products: N,N-Dimethylformamide dimethyl acetal, Phenylhydrazine, 2,4-Pentanedione; Downstream Products: 5-Methyl-1-phenyl-1H-pyrazole, 2-hydroxyethyl 4-methylbenzenesulfonate, 2-Bromo-1-(5-methyl-1-phenyl-1H-pyrazol-4-yl)ethanone.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-acetyl-5-methyl-1-phenylpyrazole (CAS 6123-63-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1453095-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.