Ethyl 3-hydroxy-1H-pyrazole-4-carboxylate
Also known as: Ethyl 3-oxo-2,3-dihydro-1H-pyrazole-4-carboxylate, Ethyl 5-hydroxy-1H-pyrazole-4-carboxylate, Ethyl 5-hydroxy-4-pyrazolecarboxylate, 3-Hydroxy-1H-pyrazole-4-carboxylic acid ethyl ester, 4-(Ethoxycarbonyl)-3-hydroxy-1H-pyrazole, 4-Ethoxycarbonyl-1,2-dihydro-3-pyrazolone, 1H-Pyrazole-4-carboxylic acid, 5-hydroxy-, ethyl ester
Ethyl 3-hydroxy-1H-pyrazole-4-carboxylate (CAS 7251-53-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H8N2O3 and a molecular weight of 156.139 g/mol. Key properties include a boiling point of 311.7ºC at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 142.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 7251-53-8
- Jingsj CID
- J-1180583-7
- Molecular Formula
- C6H8N2O3
- Molecular Weight
- 156.139 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 311.7ºC at 760 mmHg |
|---|---|
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 142.3ºC |
| Exact Mass | 156.053497 |
| PSA | 75.21000 |
| LogP | -0.31 |
| Refractive Index | 1.496 |
| Storage Conditions | 2-8°C |
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 Ethyl 3-hydroxy-1H-pyrazole-4-carboxylate?
The CAS number of Ethyl 3-hydroxy-1H-pyrazole-4-carboxylate is 7251-53-8.
What are the molecular formula and molecular weight of Ethyl 3-hydroxy-1H-pyrazole-4-carboxylate?
Ethyl 3-hydroxy-1H-pyrazole-4-carboxylate has molecular formula C6H8N2O3 and molecular weight 156.139 g/mol.
What are the upstream and downstream products of Ethyl 3-hydroxy-1H-pyrazole-4-carboxylate?
For Ethyl 3-hydroxy-1H-pyrazole-4-carboxylate, Upstream Products: Diethyl ethoxymethylenemalonate, Sodium ethoxide, Diethyl 2-[(dimethylamino)methylene]malonate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Ethyl 3-hydroxy-1H-pyrazole-4-carboxylate (CAS 7251-53-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1180583-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.