1-hydroxy-2(1H)-pyridinone
羟吡啶酮
Also known as: 2-pyridinol-1-oxide, N-hydroxy-2-pyridone, 1-hydroxy-2-pyridone, 1-hydroxy-2-pyridinone, 1-hydroxypyridin-2-one, 2(1H)-pyridinone, 1-hydroxy-, OXY-PYRION, hydroxypyridinone
1-hydroxy-2(1H)-pyridinone (CAS 822-89-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H5NO2 and a molecular weight of 111.09900 g/mol. It is also known as 2-pyridinol-1-oxide, N-hydroxy-2-pyridone and 1-hydroxy-2-pyridone. Key properties include a melting point of 149-150 °C, a boiling point of 252.3ºC at 760 mmHg, a density of 1.431 g/cm3 and a flash point of 106.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 822-89-9
- Jingsj CID
- J-1384422-4
- Molecular Formula
- C5H5NO2
- Chinese Name
- 羟吡啶酮
- Molecular Weight
- 111.09900 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 149-150 °C |
|---|---|
| Boiling Point | 252.3ºC at 760 mmHg |
| Density | 1.431 g/cm3 |
| Flash Point | 106.4ºC |
Frequently Asked Questions
What is the CAS number of 1-hydroxy-2(1H)-pyridinone?
The CAS number of 1-hydroxy-2(1H)-pyridinone is 822-89-9.
What are the molecular formula and molecular weight of 1-hydroxy-2(1H)-pyridinone?
1-hydroxy-2(1H)-pyridinone has molecular formula C5H5NO2 and molecular weight 111.09900 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1-hydroxy-2(1H)-pyridinone (CAS 822-89-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1384422-4 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.