3-Hydroxy-2H-pyran-2-one
Also known as: 3-Hydroxy-2-pyrone, 3-Hydroxy-2-pyranone, Isopyromucic acid, 3-hydroxypyran-2-one, hydroxypyrone
3-Hydroxy-2H-pyran-2-one (CAS 496-64-0) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C5H4O3 and a molecular weight of 112.084 g/mol. Key properties include a boiling point of 295.7±40.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 146.7±20.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 496-64-0
- Jingsj CID
- J-1359335-6
- Molecular Formula
- C5H4O3
- Molecular Weight
- 112.084 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 295.7±40.0 °C at 760 mmHg |
|---|---|
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 146.7±20.1 °C |
| Exact Mass | 112.016045 |
| PSA | 50.44000 |
| LogP | -0.44 |
| Vapor Pressure | 0.0±1.4 mmHg at 25°C |
| Refractive Index | 1.593 |
Customs & Trade Information
| HS Code | 2932999099 |
|---|---|
| Summary | 2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. 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 3-Hydroxy-2H-pyran-2-one?
The CAS number of 3-Hydroxy-2H-pyran-2-one is 496-64-0.
What are the molecular formula and molecular weight of 3-Hydroxy-2H-pyran-2-one?
3-Hydroxy-2H-pyran-2-one has molecular formula C5H4O3 and molecular weight 112.084 g/mol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-Hydroxy-2H-pyran-2-one (CAS 496-64-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1359335-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.