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5-Acetylpyridin-2(1H)-one

Also known as: 1-(6-Hydroxypyridin-3-yl)ethanone, 1-(6-hydroxypyridin-3-yl)ethan-1-one, 2(1H)-Pyridinone, 5-acetyl-, 2(1H)-Pyridinone,5-acetyl- (9CI), 2-Hydroxy-5-acetylpyridine, 3-Acetyl-6-hydroxypyridine, 5-Acetyl-2(1H)-pyridinone, 5-acetyl-1H-pyridin-2-one, 5-ethanoyl-1H-pyridin-2-one, ethanone, 1-(6-hydroxy-3-pyridinyl)-

5-Acetylpyridin-2(1H)-one (CAS 1124-29-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H7NO2 and a molecular weight of 137.136 g/mol. Key properties include a boiling point of 364.7±22.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 174.4±22.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1124-29-4
Jingsj CID
J-25035-1
Molecular Formula
C7H7NO2
Molecular Weight
137.136 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point364.7±22.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point174.4±22.3 °C
Exact Mass137.047684
PSA50.19000
LogP-0.40
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.557

Customs & Trade Information

HS Code2933399090
Summary2933399090. other compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure. 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 5-Acetylpyridin-2(1H)-one?

The CAS number of 5-Acetylpyridin-2(1H)-one is 1124-29-4.

What are the molecular formula and molecular weight of 5-Acetylpyridin-2(1H)-one?

5-Acetylpyridin-2(1H)-one has molecular formula C7H7NO2 and molecular weight 137.136 g/mol.

What are the upstream and downstream products of 5-Acetylpyridin-2(1H)-one?

For 5-Acetylpyridin-2(1H)-one, Upstream Products: 5-Acetyl-2-methoxypyridine, 3-Acetylpyridine N-oxide, 3-Acetylpyridine; Downstream Products: 2,3'-Bipyridin-6'(1'H)-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. "5-Acetylpyridin-2(1H)-one (CAS 1124-29-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-25035-1 (accessed 2026-11-09).

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