2-Chloro-4-nitropyridine 1-oxide

Also known as: 2-Chloro-4-nitropyridine N-oxide, 2-Chloro-4-nitropyridine-1-oxide, 2-chloro-4-nitro-1-oxidopyridin-1-ium, 2-chloro-4-nitropyridine-n-oxide, 2-Chlor-4-nitropyridin-1-oxid, AKOS BBS-00001358, AURORA 23245, OTAVA-BB BB7017520053, MFCD00661454

2-Chloro-4-nitropyridine 1-oxide (CAS 14432-16-7) 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. Key properties include a melting point of 52-56 °C(lit.), a boiling point of 405.9±25.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 199.3±23.2 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H311 — Toxic in contact with skin and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 14432-16-7
Jingsj CID: J-1492816-6
Molecular Formula: C₅H₃ClN₂O₃
Molecular Weight: 174.542 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	52-56 °C(lit.)
Boiling Point	405.9±25.0 °C at 760 mmHg
Density	1.6±0.1 g/cm3
Flash Point	199.3±23.2 °C
Exact Mass	173.983215
PSA	71.28000
LogP	0.14
Vapor Pressure	0.0±0.9 mmHg at 25°C
Refractive Index	1.629

GHS Safety & Compliance

Acute ToxicitySignal word: Danger

H301 — Toxic if swallowed
H311 — Toxic in contact with skin
H315 — Causes skin irritation
H319 — Causes serious eye irritation
H331 — Toxic if inhaled
H335 — May cause respiratory irritation

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-Chloro-4-nitropyridine 1-oxide?

The CAS number of 2-Chloro-4-nitropyridine 1-oxide is 14432-16-7.

What are the molecular formula and molecular weight of 2-Chloro-4-nitropyridine 1-oxide?

2-Chloro-4-nitropyridine 1-oxide has molecular formula C5H3ClN2O3 and molecular weight 174.542 g/mol.

Is 2-Chloro-4-nitropyridine 1-oxide hazardous?

2-Chloro-4-nitropyridine 1-oxide has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H311 — Toxic in contact with skin; H315 — Causes skin irritation.

What are the upstream and downstream products of 2-Chloro-4-nitropyridine 1-oxide?

For 2-Chloro-4-nitropyridine 1-oxide, Upstream Products: 2-Chloropyridine N-oxide, 2-Chloro-4-nitropyridine, 2-Chloropyridine N-oxide hydrochloride; Downstream Products: 2-Chloro-4-cyanopyridine, 4-Aminopyridin-2(1H)-one, 2-Amino-4-nitropyridine.

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-Chloro-4-nitropyridine 1-oxide (CAS 14432-16-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1492816-6 (accessed 2026-11-09).

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