3-Acetyl-4-hydroxyquinolin-2(1H)-one

Also known as: 3-acetyl-4-hydroxy-2-quinolone, 3-Acetyl-2,4-dihydroxyquinoline, 3-Acetyl-4-hydroxy-1H-quinolin-2-one, 2(1H)-Quinolinone, 3-acetyl-4-hydroxy-, 3-acetyl-4-hydroxyquinolin-2(1H)-one, 4-hydroxy-3-acetyl-1H-quinoline-2-one, 4-hydroxy-3-acetylquinoline-2-one, 3-acetyl-4-hydroxy-2(1H)-quinolinone, 3-acetyl-4-hydroxy-2(1H)-quinolone, 3-acetyl-4-hydroxy-2-oxo-1,2-dihydroquinioline

3-Acetyl-4-hydroxyquinolin-2(1H)-one (CAS 26138-64-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H9NO3 and a molecular weight of 203.19400 g/mol. Key properties include a boiling point of 362.6ºC at 760mmHg, a density of 1.388g/cm3 and a flash point of 173.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 26138-64-7
Jingsj CID: J-1523015-6
Molecular Formula: C₁₁H₉NO₃
Molecular Weight: 203.19400 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	362.6ºC at 760mmHg
Density	1.388g/cm3
Flash Point	173.1ºC
Exact Mass	203.05800
PSA	70.42000
LogP	1.84860
Vapor Pressure	6.8E-06mmHg at 25°C
Refractive Index	1.633

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 3-Acetyl-4-hydroxyquinolin-2(1H)-one?

The CAS number of 3-Acetyl-4-hydroxyquinolin-2(1H)-one is 26138-64-7.

What are the molecular formula and molecular weight of 3-Acetyl-4-hydroxyquinolin-2(1H)-one?

3-Acetyl-4-hydroxyquinolin-2(1H)-one has molecular formula C11H9NO3 and molecular weight 203.19400 g/mol.

What are the upstream and downstream products of 3-Acetyl-4-hydroxyquinolin-2(1H)-one?

For 3-Acetyl-4-hydroxyquinolin-2(1H)-one, Downstream Products: 3-acetyl-4-hydroxy-1-methylquinolin-2(1H)-one.

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. "3-Acetyl-4-hydroxyquinolin-2(1H)-one (CAS 26138-64-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1523015-6 (accessed 2026-11-09).

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