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3-Bromo-4-chloropyridine 1-oxide

Also known as: 3-Bromo-4-chloro-pyridine 1-oxide, 3-Brom-4-chlor-pyridin-1-oxid, 3-bromo-4-chloro-1-oxidopyridin-1-ium, 3-bromo-4-chloropyridin-1-ol, 3-bromo-4-chloropyridine-1-oxide, 3-bromo-4-chloropyridine-N-oxide, Pyridine, 3-bromo-4-chloro-, 1-oxide

3-Bromo-4-chloropyridine 1-oxide (CAS 99839-30-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H3BrClNO and a molecular weight of 208.440 g/mol. Key properties include a boiling point of 378.0±22.0 °C at 760 mmHg, a density of 1.8±0.1 g/cm3 and a flash point of 182.4±22.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
99839-30-2
Jingsj CID
J-1187136-6
Molecular Formula
C5H3BrClNO
Molecular Weight
208.440 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point378.0±22.0 °C at 760 mmHg
Density1.8±0.1 g/cm3
Flash Point182.4±22.3 °C
Exact Mass206.908646
PSA25.46000
LogP0.25
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.618

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 3-Bromo-4-chloropyridine 1-oxide?

The CAS number of 3-Bromo-4-chloropyridine 1-oxide is 99839-30-2.

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

3-Bromo-4-chloropyridine 1-oxide has molecular formula C5H3BrClNO and molecular weight 208.440 g/mol.

What are the upstream and downstream products of 3-Bromo-4-chloropyridine 1-oxide?

For 3-Bromo-4-chloropyridine 1-oxide, Upstream Products: 3-Bromo-4-nitropyridine, 3-Bromo-4-nitropyridine 1-oxide, 3-Bromopyridine.

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

Last updated:

How to cite: Jingsj. "3-Bromo-4-chloropyridine 1-oxide (CAS 99839-30-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1187136-6 (accessed 2026-11-09).

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