7-chloro-4-hydroxyquinolin-2(1H)-one

Also known as: 7-chloro-4-hydroxy-2(1H)-quinolinone, 7-chloro-4-hydroxycarbostyril, 7-chloroquinoline-2,4-diol, 7-chloro-4-hydroxyquinol-2(1H)-one, 2(1H)-Quinolinone, 7-chloro-4-hydroxy-, 7-chloro-4-hydroxy-1H-quinolin-2-one

7-chloro-4-hydroxyquinolin-2(1H)-one (CAS 1677-35-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H6ClNO2 and a molecular weight of 195.602 g/mol. Key properties include a boiling point of 470.4±40.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 238.3±27.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 1677-35-6
Jingsj CID: J-1521357-7
Molecular Formula: C₉H₆ClNO₂
Molecular Weight: 195.602 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	470.4±40.0 °C at 760 mmHg
Density	1.6±0.1 g/cm3
Flash Point	238.3±27.3 °C
Exact Mass	195.008713
PSA	53.35000
LogP	3.08
Vapor Pressure	0.0±1.2 mmHg at 25°C
Refractive Index	1.744

Frequently Asked Questions

What is the CAS number of 7-chloro-4-hydroxyquinolin-2(1H)-one?

The CAS number of 7-chloro-4-hydroxyquinolin-2(1H)-one is 1677-35-6.

What are the molecular formula and molecular weight of 7-chloro-4-hydroxyquinolin-2(1H)-one?

7-chloro-4-hydroxyquinolin-2(1H)-one has molecular formula C9H6ClNO2 and molecular weight 195.602 g/mol.

What are the upstream and downstream products of 7-chloro-4-hydroxyquinolin-2(1H)-one?

For 7-chloro-4-hydroxyquinolin-2(1H)-one, Downstream Products: 2,4,7-Trichloroquinoline.

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

Last updated: 8/21/2026

How to cite: Jingsj. "7-chloro-4-hydroxyquinolin-2(1H)-one (CAS 1677-35-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1521357-7 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.