1H-Pyrazole-3-carbaldehyde
Also known as: 3-Formylpyrazole, Pyrazole-3-carboxaldehyde, 1H-Pyrazole-5-carbaldehyde, 2H-Pyrazole-3-carbaldehyde, 1H-Pyrazole-3-carboxaldehyde, 1H-Pyrazole-5-carboxaldehyde, Pyrazole-3-carbaldehyde, RARECHEM AM LA 0023
1H-Pyrazole-3-carbaldehyde (CAS 3920-50-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H4N2O and a molecular weight of 96.087 g/mol. Key properties include a melting point of 149.0 to 153.0 °C, a boiling point of 300.0±13.0 °C at 760 mmHg, a density of 1.323 and a flash point of 139.7±26.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 3920-50-1
- Jingsj CID
- J-1526154-8
- Molecular Formula
- C4H4N2O
- Molecular Weight
- 96.087 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 149.0 to 153.0 °C |
|---|---|
| Boiling Point | 300.0±13.0 °C at 760 mmHg |
| Density | 1.323 |
| Flash Point | 139.7±26.3 °C |
| Exact Mass | 96.032364 |
| PSA | 45.75000 |
| LogP | -0.46 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.620 |
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 1H-Pyrazole-3-carbaldehyde?
The CAS number of 1H-Pyrazole-3-carbaldehyde is 3920-50-1.
What are the molecular formula and molecular weight of 1H-Pyrazole-3-carbaldehyde?
1H-Pyrazole-3-carbaldehyde has molecular formula C4H4N2O and molecular weight 96.087 g/mol.
What are the upstream and downstream products of 1H-Pyrazole-3-carbaldehyde?
For 1H-Pyrazole-3-carbaldehyde, Upstream Products: 3-(Dimethoxymethyl)-1H-pyrazole, Diazomethane, Propiolaldehyde; Downstream Products: 3-(Dimethoxymethyl)-1H-pyrazole, 1-Allyl-1H-pyrazole-3-carbaldehyde.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1H-Pyrazole-3-carbaldehyde (CAS 3920-50-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1526154-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.