5,6-Dihydro-2H-pyran-2-one
5,6-二氢-2H-吡喃-2-酮
Also known as: 5,6-Dihydro-2-pyranone, 2,3-Dihydropyran-6-one, 2-Pentenoic acid, 5-hydroxy-, delta-lactone, 2H-Pyran-2-one, 5,6-dihydro-, Dihydropyranone
5,6-Dihydro-2H-pyran-2-one (CAS 3393-45-1) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C5H6O2 and a molecular weight of 98.100 g/mol. It is also known as 5,6-Dihydro-2-pyranone, 2,3-Dihydropyran-6-one and 2-Pentenoic acid, 5-hydroxy-, delta-lactone. Key properties include a boiling point of 233.7±19.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 46.1±0.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 3393-45-1
- Jingsj CID
- J-36430-6
- Molecular Formula
- C5H6O2
- Chinese Name
- 5,6-二氢-2H-吡喃-2-酮
- Molecular Weight
- 98.100 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 233.7±19.0 °C at 760 mmHg |
|---|---|
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 46.1±0.0 °C |
Frequently Asked Questions
What is the CAS number of 5,6-Dihydro-2H-pyran-2-one?
The CAS number of 5,6-Dihydro-2H-pyran-2-one is 3393-45-1.
What are the molecular formula and molecular weight of 5,6-Dihydro-2H-pyran-2-one?
5,6-Dihydro-2H-pyran-2-one has molecular formula C5H6O2 and molecular weight 98.100 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5,6-Dihydro-2H-pyran-2-one (CAS 3393-45-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-36430-6 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.