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2-hydroxy-3,5-dinitropyridine

Also known as: 3,5-dinitro-2-pyridinol, 3,5-dinitro-2-hydroxypyridine, 3,5-dinitropyridin-2(1H)-one, 3,5-dinitropyridin-2-ol, 2(1H)-pyridinone, 3,5-dinitro-, 2-pyridinol, 3,5-dinitro-, NSC 52198, 3,5-dinitro-2-pyridone

2-hydroxy-3,5-dinitropyridine (CAS 2980-33-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H3N3O5 and a molecular weight of 185.094 g/mol. Key properties include a melting point of 175-179 °C(lit.), a boiling point of 399.1±42.0 °C at 760 mmHg, a density of 1.8±0.1 g/cm3 and a flash point of 195.2±27.9 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2980-33-8
Jingsj CID
J-7519-4
Molecular Formula
C5H3N3O5
Molecular Weight
185.094 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point175-179 °C(lit.)
Boiling Point399.1±42.0 °C at 760 mmHg
Density1.8±0.1 g/cm3
Flash Point195.2±27.9 °C
Exact Mass185.007263
PSA124.50000
LogP-0.17
Vapor Pressure0.0±1.0 mmHg at 25°C
Refractive Index1.674

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Frequently Asked Questions

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

The CAS number of 2-hydroxy-3,5-dinitropyridine is 2980-33-8.

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

2-hydroxy-3,5-dinitropyridine has molecular formula C5H3N3O5 and molecular weight 185.094 g/mol.

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

2-hydroxy-3,5-dinitropyridine has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

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

For 2-hydroxy-3,5-dinitropyridine, Upstream Products: 2-Amino-3,5-dinitro-6-methylpyridine, 2-Hydroxy-5-nitropyridine, 2-Hydroxy-3-nitropyridine; Downstream Products: 3-Amino-5-nitropyridin-2(1H)-one, 3,5-Diaminopyridine, 3,5-Dinitropyridine.

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-hydroxy-3,5-dinitropyridine (CAS 2980-33-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-7519-4 (accessed 2026-11-09).

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