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7-Hydroxyquinolin-2(1H)-one

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. 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-1525762-2
Molecular Formula
C9H7NO2
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
Exact Mass161.047684
PSA53.09000
LogP1.84
Vapor Pressure0.0±1.1 mmHg at 25°C
Refractive Index1.743
Storage ConditionsRefrigerator

Customs & Trade Information

HS Code2933499090
Summary2933499090. other compounds containing in the structure a quinoline or isoquinoline ring-system (whether or not hydrogenated), not further fused. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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.

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

For 7-Hydroxyquinolin-2(1H)-one, Upstream Products: 3-Aminophenol, 7-Hydroxycoumarin, m-Anisidine; Downstream Products: 7-(4-(4-(2,3-Dichlorophenyl)piperazin-1-yl)butoxy)quinolin-2(1H)-one, 7-(4-Bromobutoxy)quinolin-2(1H)-one.

Data compiled from public chemical databases such as PubChem 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-1525762-2 (accessed 2026-11-09).

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