2-chloropyridin-4(1H)-one

Also known as: 2-chloro-4-pyridone, 2-chloro-4-hydroxypyridine, 2-chloropyridin-4(1H)-one, 2-chloro-1H-pyridin-4-one, 4(1H)-Pyridinone, 2-chloro-, 6-chloropyridin-4(3H)-one

2-chloropyridin-4(1H)-one (CAS 17228-67-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H4ClNO and a molecular weight of 129.54400 g/mol. Key properties include a boiling point of 225.1ºC at 760mmHg, a density of 1.35g/cm3 and a flash point of 89.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 17228-67-0
Jingsj CID: J-1168979-5
Molecular Formula: C₅H₄ClNO
Molecular Weight: 129.54400 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	225.1ºC at 760mmHg
Density	1.35g/cm3
Flash Point	89.9ºC
Exact Mass	128.99800
PSA	32.86000
LogP	1.02830
Vapor Pressure	0.0879mmHg at 25°C
Refractive Index	1.569

Customs & Trade Information

HS Code	2933399090
Summary	2933399090. 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 2-chloropyridin-4(1H)-one?

The CAS number of 2-chloropyridin-4(1H)-one is 17228-67-0.

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

2-chloropyridin-4(1H)-one has molecular formula C5H4ClNO and molecular weight 129.54400 g/mol.

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. "2-chloropyridin-4(1H)-one (CAS 17228-67-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1168979-5 (accessed 2026-11-09).

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