5-chloro-2-quinolone

5-氯喹啉-2(1H)-酮

Also known as: 5-Chloro-2(1H)-quinolinone, 5-Chloroquinolin-2(1H)-one, 2(1H)-Quinolinone, 5-chloro-, 5-CHLORO-2-HYDROXY QUINOLINE, 5-chloro-2-quinolinone, 5-chlorocarbostyril, 5-Chlor-2(1H)-chinolon

5-chloro-2-quinolone (CAS 23981-22-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H6ClNO and a molecular weight of 179.603 g/mol. It is also known as 5-Chloro-2(1H)-quinolinone, 5-Chloroquinolin-2(1H)-one and 2(1H)-Quinolinone, 5-chloro-. Key properties include a boiling point of 372.6±42.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 179.1±27.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
23981-22-8
Jingsj CID
J-1060991-6
Molecular Formula
C9H6ClNO
Chinese Name
5-氯喹啉-2(1H)-酮
Molecular Weight
179.603 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point372.6±42.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point179.1±27.9 °C

Frequently Asked Questions

What is the CAS number of 5-chloro-2-quinolone?

The CAS number of 5-chloro-2-quinolone is 23981-22-8.

What are the molecular formula and molecular weight of 5-chloro-2-quinolone?

5-chloro-2-quinolone has molecular formula C9H6ClNO and molecular weight 179.603 g/mol.

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

Last updated:

How to cite: Jingsj. "5-chloro-2-quinolone (CAS 23981-22-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1060991-6 (accessed 2026-10-22).

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