7-Hydroxyquinolin-2(1H)-one

7-羟基-2-喹诺酮

Also known as: 7-Hydroxy-2(1H)-quinolinone, 7-Hydroxy-1H-quinolin-2-one, 2,7-Dihydroxyquinoline, Quinoline-2,7-diol, 7-Hydroxycarbostyril, 7-Hydroxyquinolinone, Brexpiprazole Impurity 4

7-Hydroxyquinolin-2(1H)-one (CAS 70500-72-0) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C9H7NO2 and a molecular weight of 161.157 g/mol. It is also known as 7-Hydroxy-2(1H)-quinolinone, 7-Hydroxy-1H-quinolin-2-one and 2,7-Dihydroxyquinoline. Key properties include a melting point of 234-238ºC, a boiling point of 441.7±25.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 220.9±23.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
70500-72-0
Jingsj CID
J-1525762-8
Molecular Formula
C9H7NO2
Chinese Name
7-羟基-2-喹诺酮
Molecular Weight
161.157 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point234-238ºC
Boiling Point441.7±25.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point220.9±23.2 °C

Frequently Asked Questions

What is the CAS number of 7-Hydroxyquinolin-2(1H)-one?

The CAS number of 7-Hydroxyquinolin-2(1H)-one is 70500-72-0.

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

7-Hydroxyquinolin-2(1H)-one has molecular formula C9H7NO2 and molecular weight 161.157 g/mol.

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

Last updated:

How to cite: Jingsj. "7-Hydroxyquinolin-2(1H)-one (CAS 70500-72-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1525762-8 (accessed 2026-10-22).

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