3-Acetyl-6,8-dichloro-2H-chromen-2-one
Also known as: 2H-1-Benzopyran-2-one, 3-acetyl-6,8-dichloro-, 3-Acetyl-6,8-dichlorocoumarin, 3-Acetyl-6,8-dichloro-2H-1-benzopyran-2-one, 3-acetyl-6,8-dichloro-coumarin, 3-acetyl-6,8-dichloro-2H-chromen-2-one
3-Acetyl-6,8-dichloro-2H-chromen-2-one (CAS 2199-91-9) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C11H6Cl2O3 and a molecular weight of 257.07000 g/mol. Key properties include a melting point of 172ºC, a boiling point of 462.6ºC at 760mmHg, a density of 1.51g/cm3 and a flash point of 208.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 2199-91-9
- Jingsj CID
- J-1359856-6
- Molecular Formula
- C11H6Cl2O3
- Molecular Weight
- 257.07000 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 172ºC |
|---|---|
| Boiling Point | 462.6ºC at 760mmHg |
| Density | 1.51g/cm3 |
| Flash Point | 208.6ºC |
| Exact Mass | 255.96900 |
| PSA | 47.28000 |
| LogP | 3.30240 |
| Vapor Pressure | 9.71E-09mmHg at 25°C |
| Refractive Index | 1.606 |
Customs & Trade Information
| HS Code | 2932209090 |
|---|---|
| Summary | 2932209090. other lactones. 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-Acetyl-6,8-dichloro-2H-chromen-2-one?
The CAS number of 3-Acetyl-6,8-dichloro-2H-chromen-2-one is 2199-91-9.
What are the molecular formula and molecular weight of 3-Acetyl-6,8-dichloro-2H-chromen-2-one?
3-Acetyl-6,8-dichloro-2H-chromen-2-one has molecular formula C11H6Cl2O3 and molecular weight 257.07000 g/mol.
What are the upstream and downstream products of 3-Acetyl-6,8-dichloro-2H-chromen-2-one?
For 3-Acetyl-6,8-dichloro-2H-chromen-2-one, Upstream Products: Methyl acetoacetate, 3,5-Dichlorosalicylaldehyde, Ethyl acetoacetate.
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-Acetyl-6,8-dichloro-2H-chromen-2-one (CAS 2199-91-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1359856-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.