1H-Pyrazol-1-ol
1-羟基吡唑
Also known as: 1-hydroxypyrazole, 1-hydroxy-1,2-diazole, 1-hydroxy-1H-pyrazole, 1H-Pyrazole, 1-hydroxy-, 1H-Pyrazole,1-hydroxy, EINECS 279-854-3, N-Hydroxypyrazole, Pyrazol-1-ol, hydroxypyrazole
1H-Pyrazol-1-ol (CAS 81945-73-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C3H4N2O and a molecular weight of 84.077 g/mol. It is also known as 1-hydroxypyrazole, 1-hydroxy-1,2-diazole and 1-hydroxy-1H-pyrazole. Key properties include a boiling point of 242.3±23.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 100.3±22.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 81945-73-5
- Jingsj CID
- J-948511-8
- Molecular Formula
- C3H4N2O
- Chinese Name
- 1-羟基吡唑
- Molecular Weight
- 84.077 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 242.3±23.0 °C at 760 mmHg |
|---|---|
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 100.3±22.6 °C |
Frequently Asked Questions
What is the CAS number of 1H-Pyrazol-1-ol?
The CAS number of 1H-Pyrazol-1-ol is 81945-73-5.
What are the molecular formula and molecular weight of 1H-Pyrazol-1-ol?
1H-Pyrazol-1-ol has molecular formula C3H4N2O and molecular weight 84.077 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1H-Pyrazol-1-ol (CAS 81945-73-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-948511-8 (accessed 2026-10-24).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.