1-Methyl-2-quinolinone

Also known as: 1-Methyl-1,2-dihydroquinolin-2-one, 1-Methyl-1H-quinolin-2-one, 1-Methyl-2(1H)-quinolinone, 1-Methyl-2(1H)-quinolone, 1-Methyl-2-quinolone, 1-Methylcarbostyril, N-Methyl-2-quinolone, N-Methylcarbostyril, 2(1H)-Quinolinone,1-methyl-, Carbostyril, 1-methyl-, 1-methylquinolin-2-one, N-Methyl-quinolin-2-one

1-Methyl-2-quinolinone (CAS 606-43-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H9NO and a molecular weight of 159.18500 g/mol. Key properties include a melting point of 74-76°C, a boiling point of 247.5ºC at 760 mmHg and a density of 1.16 g/cm 3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 606-43-9
Jingsj CID: J-24789-2
Molecular Formula: C₁₀H₉NO
Molecular Weight: 159.18500 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	74-76°C
Boiling Point	247.5ºC at 760 mmHg
Density	1.16 g/cm 3
Exact Mass	159.06800
PSA	22.00000
LogP	1.53850
Refractive Index	1.592

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 1-Methyl-2-quinolinone?

The CAS number of 1-Methyl-2-quinolinone is 606-43-9.

What are the molecular formula and molecular weight of 1-Methyl-2-quinolinone?

1-Methyl-2-quinolinone has molecular formula C10H9NO and molecular weight 159.18500 g/mol.

What are the upstream and downstream products of 1-Methyl-2-quinolinone?

For 1-Methyl-2-quinolinone, Upstream Products: 2-Quinolinol, iodomethane, Chloro(chloromethyl)dimethylsilane; Downstream Products: 1-Methyl-1,2,3,4-tetrahydroquinoline, Quinoline, 1,2-dihydro-1-methyl-, 2-Chloroquinoline.

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. "1-Methyl-2-quinolinone (CAS 606-43-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-24789-2 (accessed 2026-11-09).

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