5-Phenyl-1H-pyrazole-3-carboxylic acid
Also known as: 1H-Pyrazole-3-carboxylic acid, 5-phenyl-, 1H-Pyrazole-5-carboxylic acid, 3-phenyl-, 3-Phenyl-1H-pyrazole-5-carboxylic acid, 3-phenylpyrazole-5-carboxylic acid, Pyrazole-3-carboxylic acid, 5-phenyl-, Pyrazole-5-carboxylic acid, 3-phenyl-
5-Phenyl-1H-pyrazole-3-carboxylic acid (CAS 1134-49-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H8N2O2 and a molecular weight of 188.183 g/mol. Key properties include a melting point of 250 °C, a boiling point of 496.5±33.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 254.1±25.4 °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.
- 1134-49-2
- Jingsj CID
- J-45579-8
- Molecular Formula
- C10H8N2O2
- Molecular Weight
- 188.183 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 250 °C |
|---|---|
| Boiling Point | 496.5±33.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 254.1±25.4 °C |
| Exact Mass | 188.058578 |
| PSA | 65.98000 |
| LogP | 1.88 |
| Vapor Pressure | 0.0±1.3 mmHg at 25°C |
| Refractive Index | 1.645 |
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 5-Phenyl-1H-pyrazole-3-carboxylic acid?
The CAS number of 5-Phenyl-1H-pyrazole-3-carboxylic acid is 1134-49-2.
What are the molecular formula and molecular weight of 5-Phenyl-1H-pyrazole-3-carboxylic acid?
5-Phenyl-1H-pyrazole-3-carboxylic acid has molecular formula C10H8N2O2 and molecular weight 188.183 g/mol.
Is 5-Phenyl-1H-pyrazole-3-carboxylic acid hazardous?
5-Phenyl-1H-pyrazole-3-carboxylic acid 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 5-Phenyl-1H-pyrazole-3-carboxylic acid?
For 5-Phenyl-1H-pyrazole-3-carboxylic acid, Upstream Products: Methyl 5-phenyl-1H-pyrazole-3-carboxylate, Ethyl 3-phenyl-1H-pyrazole-5-carboxylate, Ethyl 2,4-dioxo-4-phenylbutanoate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5-Phenyl-1H-pyrazole-3-carboxylic acid (CAS 1134-49-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45579-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.