4-Chromanone
2,3-二氢苯并吡喃-4-酮
Also known as: Chroman-4-one, 2,3-Dihydro-4H-chromen-4-one, 2,3-Dihydro-1-benzopyran-4-one, 4H-1-Benzopyran-4-one, 2,3-dihydro-, Isochromanone
4-Chromanone (CAS 491-37-2) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C9H8O2 and a molecular weight of 148.159 g/mol. It is also known as Chroman-4-one, 2,3-Dihydro-4H-chromen-4-one and 2,3-Dihydro-1-benzopyran-4-one. Key properties include a melting point of 34-40ºC, a boiling point of 253.2±0.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 128.4±15.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 491-37-2
- Jingsj CID
- J-28524-1
- Molecular Formula
- C9H8O2
- Chinese Name
- 2,3-二氢苯并吡喃-4-酮
- Molecular Weight
- 148.159 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 34-40ºC |
|---|---|
| Boiling Point | 253.2±0.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 128.4±15.3 °C |
Frequently Asked Questions
What is the CAS number of 4-Chromanone?
The CAS number of 4-Chromanone is 491-37-2.
What are the molecular formula and molecular weight of 4-Chromanone?
4-Chromanone has molecular formula C9H8O2 and molecular weight 148.159 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Chromanone (CAS 491-37-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-28524-1 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.