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2-Chloro-3-fluoro-4-nitropyridine N-oxide

Also known as: 2-Chloro-3-fluoro-4-nitropyridine 1-oxide, 2-chloro-3-fluoro-4-nitro-1-oxidopyridin-1-ium, Pyridine, 2-chloro-3-fluoro-4-nitro-, 1-oxide, 2-CHLORO-3-FLUORO-4-NITROPYRIDINE N-OXIDE, 2-Chloro-3-fluoro-4-nitropyridine-n-oxide

2-Chloro-3-fluoro-4-nitropyridine N-oxide (CAS 101664-56-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H2ClFN2O3 and a molecular weight of 192.532 g/mol. Key properties include a melting point of 176-178ºC, a boiling point of 428.8±40.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 213.1±27.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
101664-56-6
Jingsj CID
J-19157-1
Molecular Formula
C5H2ClFN2O3
Molecular Weight
192.532 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point176-178ºC
Boiling Point428.8±40.0 °C at 760 mmHg
Density1.7±0.1 g/cm3
Flash Point213.1±27.3 °C
Exact Mass191.973801
PSA71.28000
LogP-0.01
Vapor Pressure0.0±1.0 mmHg at 25°C
Refractive Index1.606
Additional PropertyInsoluble in water.

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 2-Chloro-3-fluoro-4-nitropyridine N-oxide?

The CAS number of 2-Chloro-3-fluoro-4-nitropyridine N-oxide is 101664-56-6.

What are the molecular formula and molecular weight of 2-Chloro-3-fluoro-4-nitropyridine N-oxide?

2-Chloro-3-fluoro-4-nitropyridine N-oxide has molecular formula C5H2ClFN2O3 and molecular weight 192.532 g/mol.

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

Last updated:

How to cite: Jingsj. "2-Chloro-3-fluoro-4-nitropyridine N-oxide (CAS 101664-56-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-19157-1 (accessed 2026-11-09).

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