4-Chloro-3-nitropyridin-2-ol

2-羟基-3-硝基-4-氯吡啶

Also known as: 4-Chloro-3-nitro-2-pyridone, 4-Chloro-3-nitro-2-hydroxypyridine, 4-Chloro-3-nitropyridin-2(1H)-one, 4-Chloro-3-nitro-1H-pyridin-2-one, 2-Hydroxy-3-nitro-4-chloropyridine, 4-Chloro-3-nitro-2-pyridinol, MFCD03093067

4-Chloro-3-nitropyridin-2-ol (CAS 165547-79-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H3ClN2O3 and a molecular weight of 174.542 g/mol. It is also known as 4-Chloro-3-nitro-2-pyridone, 4-Chloro-3-nitro-2-hydroxypyridine and 4-Chloro-3-nitropyridin-2(1H)-one. Key properties include a melting point of 222-224°C, a boiling point of 330.7±37.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 153.8±26.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
165547-79-5
Jingsj CID
J-1499060-9
Molecular Formula
C5H3ClN2O3
Chinese Name
2-羟基-3-硝基-4-氯吡啶
Molecular Weight
174.542 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point222-224°C
Boiling Point330.7±37.0 °C at 760 mmHg
Density1.7±0.1 g/cm3
Flash Point153.8±26.5 °C

Frequently Asked Questions

What is the CAS number of 4-Chloro-3-nitropyridin-2-ol?

The CAS number of 4-Chloro-3-nitropyridin-2-ol is 165547-79-5.

What are the molecular formula and molecular weight of 4-Chloro-3-nitropyridin-2-ol?

4-Chloro-3-nitropyridin-2-ol has molecular formula C5H3ClN2O3 and molecular weight 174.542 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "4-Chloro-3-nitropyridin-2-ol (CAS 165547-79-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1499060-9 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.