1-Phenylpyrazole
Also known as: 1-Phenyl-1H-pyrazole, N-Phenylpyrazole, 1-Phenylpyrazol, Pyrazole, 1-phenyl-, 1H-Pyrazole, 1-phenyl-
1-Phenylpyrazole (CAS 1126-00-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H8N2 and a molecular weight of 144.17300 g/mol. Key properties include a melting point of 11 °C, a boiling point of 141-142 °C (30 mmHg), a density of 1.09 and a flash point of 109°C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1126-00-7
- Jingsj CID
- J-29102-1
- Molecular Formula
- C9H8N2
- Molecular Weight
- 144.17300 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 11 °C |
|---|---|
| Boiling Point | 141-142 °C (30 mmHg) |
| Density | 1.09 |
| Flash Point | 109°C |
| Exact Mass | 144.06900 |
| PSA | 17.82000 |
| LogP | 1.87230 |
| Vapor Pressure | 0.0338mmHg at 25°C |
| Refractive Index | 1.594-1.598 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
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-Phenylpyrazole?
The CAS number of 1-Phenylpyrazole is 1126-00-7.
What are the molecular formula and molecular weight of 1-Phenylpyrazole?
1-Phenylpyrazole has molecular formula C9H8N2 and molecular weight 144.17300 g/mol.
Is 1-Phenylpyrazole hazardous?
1-Phenylpyrazole has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of 1-Phenylpyrazole?
For 1-Phenylpyrazole, Upstream Products: Pyrazole, Iodobenzene, Bromobenzene; Downstream Products: 1-(4-Nitrophenyl)-1H-pyrazole, (2-(1H-Pyrazol-1-yl)phenyl)methanamine, 4-(1H-Pyrazol-1-yl)benzenesulfonic acid.
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-Phenylpyrazole (CAS 1126-00-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-29102-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.