4-chloro-2H-pyran-2-one

4-氯-2H-吡喃-2-酮

Also known as: 4-chloropyran-2-one, 2H-Pyran-2-one, 4-chloro-, 4-chloro-2-pyrone, chloropyrone

4-chloro-2H-pyran-2-one (CAS 129660-02-2) 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 4-chloropyran-2-one, 2H-Pyran-2-one, 4-chloro- and 4-chloro-2-pyrone. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 129660-02-2
Jingsj CID: J-1318490-6
Molecular Formula: C₅H₃ClO₂
Chinese Name: 4-氯-2H-吡喃-2-酮
Molecular Weight: 130.52900 g/mol
Category: Ketones
Last updated: 8/21/2026

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Frequently Asked Questions

What is the CAS number of 4-chloro-2H-pyran-2-one?

The CAS number of 4-chloro-2H-pyran-2-one is 129660-02-2.

What are the molecular formula and molecular weight of 4-chloro-2H-pyran-2-one?

4-chloro-2H-pyran-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: 8/21/2026

How to cite: Jingsj. "4-chloro-2H-pyran-2-one (CAS 129660-02-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1318490-6 (accessed 2026-10-25).

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