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3-Acetyl-6,8-dichloro-2H-chromen-2-one

3-乙酰基-6,8-二氯-2H-色烯-2-酮

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. It is also known as 2H-1-Benzopyran-2-one, 3-acetyl-6,8-dichloro-, 3-Acetyl-6,8-dichlorocoumarin and 3-Acetyl-6,8-dichloro-2H-1-benzopyran-2-one. 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-1359856-7
Molecular Formula
C11H6Cl2O3
Chinese Name
3-乙酰基-6,8-二氯-2H-色烯-2-酮
Molecular Weight
257.07000 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point172ºC
Boiling Point462.6ºC at 760mmHg
Density1.51g/cm3
Flash Point208.6ºC

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.

Data compiled from public chemical databases 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-1359856-7 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.