6-chloropyran-2-one

6-氯吡喃-2H-酮

Also known as: 6-chloro-2H-pyran-2-one, 6-chloro-2-pyrone, 6-chloro-α-pyrone, 6-chloropyran-2H-one, 2H-Pyran-2-one, 6-chloro-, 6-chloro-pyran-2-one, 6-chloro-2(2H)-pyranone

6-chloropyran-2-one (CAS 20357-65-7) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C5H3ClO2 and a molecular weight of 130.52900 g/mol. It is also known as 6-chloro-2H-pyran-2-one, 6-chloro-2-pyrone and 6-chloro-α-pyrone. Key properties include a boiling point of 193-194ºC(lit.), a density of 1.356 g/mL at 25ºC(lit.) and a flash point of >230 °F. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
20357-65-7
Jingsj CID
J-18004-3
Molecular Formula
C5H3ClO2
Chinese Name
6-氯吡喃-2H-酮
Molecular Weight
130.52900 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point193-194ºC(lit.)
Density1.356 g/mL at 25ºC(lit.)
Flash Point>230 °F

Frequently Asked Questions

What is the CAS number of 6-chloropyran-2-one?

The CAS number of 6-chloropyran-2-one is 20357-65-7.

What are the molecular formula and molecular weight of 6-chloropyran-2-one?

6-chloropyran-2-one has molecular formula C5H3ClO2 and molecular weight 130.52900 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "6-chloropyran-2-one (CAS 20357-65-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-18004-3 (accessed 2026-10-22).

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