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2-Chloro-3,5-dinitropyridine

Also known as: 2-Chloro-3,5-dinitropyridine, 3,5-Dinitro-2-chloropyridine, 2-Chlor-3,5-dinitro-pyridin, Pyridine, 2-chloro-3,5-dinitro-

2-Chloro-3,5-dinitropyridine (CAS 2578-45-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H2ClN3O4 and a molecular weight of 203.540 g/mol. Key properties include a melting point of 63-65 °C(lit.), a boiling point of 320.9±37.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 147.9±26.5 °C. It is classified under GHS with signal word Danger and hazard statements H300. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2578-45-2
Jingsj CID
J-7295-7
Molecular Formula
C5H2ClN3O4
Molecular Weight
203.540 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026
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Physicochemical Properties

Melting Point63-65 °C(lit.)
Boiling Point320.9±37.0 °C at 760 mmHg
Density1.7±0.1 g/cm3
Flash Point147.9±26.5 °C
Exact Mass202.973389
PSA104.53000
LogP0.86
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.635

GHS Safety & Compliance

Acute ToxicitySignal word: Danger
  • H300

Frequently Asked Questions

What is the CAS number of 2-Chloro-3,5-dinitropyridine?

The CAS number of 2-Chloro-3,5-dinitropyridine is 2578-45-2.

What are the molecular formula and molecular weight of 2-Chloro-3,5-dinitropyridine?

2-Chloro-3,5-dinitropyridine has molecular formula C5H2ClN3O4 and molecular weight 203.540 g/mol.

Is 2-Chloro-3,5-dinitropyridine hazardous?

2-Chloro-3,5-dinitropyridine has GHS signal word Danger and hazard statements H300.

What are the upstream and downstream products of 2-Chloro-3,5-dinitropyridine?

For 2-Chloro-3,5-dinitropyridine, Upstream Products: 2-hydroxy-3,5-dinitropyridine, 2-Hydroxy-5-nitropyridine, 2-Hydroxy-3-nitropyridine; Downstream Products: 3,5-Diaminopyridine, 2,6-diamino-3,5-dinitropyridine, 3,5-Dinitropyridin-2-amine.

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-3,5-dinitropyridine (CAS 2578-45-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-7295-7 (accessed 2026-11-09).

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