3-Bromo-4-nitropyridine 1-oxide

3-溴-4-硝基吡啶 N-氧化物

Also known as: 3-Bromo-4-nitropyridine N-oxide, 3-Bromo-4-nitropyridine 1-oxide, 4-nitro-3-bromo pyridine N-oxide, 3-bromo-4-nitro-1-oxidopyridin-1-ium, Pyridine, 3-bromo-4-nitro-, 1-oxide

3-Bromo-4-nitropyridine 1-oxide (CAS 1678-49-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H3BrN2O3 and a molecular weight of 218.993 g/mol. It is also known as 3-Bromo-4-nitropyridine N-oxide, 4-nitro-3-bromo pyridine N-oxide and 3-bromo-4-nitro-1-oxidopyridin-1-ium. Key properties include a melting point of 152-154°C, a boiling point of 393.0±22.0 °C at 760 mmHg, a density of 2.0±0.1 g/cm3 and a flash point of 191.5±22.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1678-49-5
Jingsj CID
J-12519-8
Molecular Formula
C5H3BrN2O3
Chinese Name
3-溴-4-硝基吡啶 N-氧化物
Molecular Weight
218.993 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point152-154°C
Boiling Point393.0±22.0 °C at 760 mmHg
Density2.0±0.1 g/cm3
Flash Point191.5±22.3 °C

Frequently Asked Questions

What is the CAS number of 3-Bromo-4-nitropyridine 1-oxide?

The CAS number of 3-Bromo-4-nitropyridine 1-oxide is 1678-49-5.

What are the molecular formula and molecular weight of 3-Bromo-4-nitropyridine 1-oxide?

3-Bromo-4-nitropyridine 1-oxide has molecular formula C5H3BrN2O3 and molecular weight 218.993 g/mol.

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

Last updated:

How to cite: Jingsj. "3-Bromo-4-nitropyridine 1-oxide (CAS 1678-49-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-12519-8 (accessed 2026-10-22).

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