Chromone
Also known as: 4H-chromen-4-one, 1-benzopyran-4-one, 4H-1-benzopyran-4-one, 4H-benzo[b]pyran-4-one, benzopyran-4-one, 4-chromone, benzo-γ-pyrone
Chromone (CAS 491-38-3) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C9H6O2 and a molecular weight of 146.143 g/mol. Key properties include a melting point of 55-60 °C(lit.), a boiling point of 238.5±33.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 106.5±18.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 491-38-3
- Jingsj CID
- J-1522833-4
- Molecular Formula
- C9H6O2
- Molecular Weight
- 146.143 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 55-60 °C(lit.) |
|---|---|
| Boiling Point | 238.5±33.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 106.5±18.9 °C |
| Exact Mass | 146.036774 |
| PSA | 30.21000 |
| LogP | 1.38 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.595 |
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 Chromone?
The CAS number of Chromone is 491-38-3.
What are the molecular formula and molecular weight of Chromone?
Chromone has molecular formula C9H6O2 and molecular weight 146.143 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. "Chromone (CAS 491-38-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1522833-4 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.