7-Methoxy-3,4-dihydroquinolin-2(1H)-one

Also known as: 7-Methoxy-3,4-dihydro-1H-quinolin-2-one, 7-Methoxy-3,4-dihydro-2(1H)-quinolinone, 7-Methoxy-2,3-dihydro-2(1H) quinolinone, 7-methoxy-3,4-dihydrocarbostyril, 3,4-dihydro-7-methoxy-2(1H)-quinolinone, 7-methoxy-2-oxo-1,2,3,4-tetrahydroquinoline, Brexpiprazole Impurity 13, Brexpiprazole Impurity 69

7-Methoxy-3,4-dihydroquinolin-2(1H)-one (CAS 22246-17-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H11NO2 and a molecular weight of 177.200 g/mol. Key properties include a melting point of 145-147ºC, a boiling point of 358.3±42.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 170.5±27.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 22246-17-9
Jingsj CID: J-1488488-9
Molecular Formula: C₁₀H₁₁NO₂
Molecular Weight: 177.200 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	145-147ºC
Boiling Point	358.3±42.0 °C at 760 mmHg
Density	1.2±0.1 g/cm3
Flash Point	170.5±27.9 °C
Exact Mass	177.078979
PSA	41.82000
LogP	1.51
Vapor Pressure	0.0±0.8 mmHg at 25°C
Refractive Index	1.549

Customs & Trade Information

HS Code	2933790090
Summary	2933790090. other lactams. VAT:17.0%. Tax rebate rate:9.0%. . MFN tariff:9.0%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 7-Methoxy-3,4-dihydroquinolin-2(1H)-one?

The CAS number of 7-Methoxy-3,4-dihydroquinolin-2(1H)-one is 22246-17-9.

What are the molecular formula and molecular weight of 7-Methoxy-3,4-dihydroquinolin-2(1H)-one?

7-Methoxy-3,4-dihydroquinolin-2(1H)-one has molecular formula C10H11NO2 and molecular weight 177.200 g/mol.

What are the upstream and downstream products of 7-Methoxy-3,4-dihydroquinolin-2(1H)-one?

For 7-Methoxy-3,4-dihydroquinolin-2(1H)-one, Downstream Products: 3,4-Dihydro-7-hydroxy-2(1H)-quinolinone.

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-Methoxy-3,4-dihydroquinolin-2(1H)-one (CAS 22246-17-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1488488-9 (accessed 2026-11-09).

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