6-Bromo-1H-imidazo[4,5-b]pyridine

Also known as: 6-Bromo-3H-imidazo[4,5-b]pyridine, 6-Bromo-4-azabenzimidazole, 6-Bromoimidazo[4,5-b]pyridine, 6-bromo-1(3)H-imidazo[4,5-b]pyridine

6-Bromo-1H-imidazo[4,5-b]pyridine (CAS 28279-49-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H4BrN3 and a molecular weight of 198.020 g/mol. Key properties include a melting point of 227-228℃ (water ), a boiling point of 415.7±25.0 °C at 760 mmHg, a density of 1.9±0.1 g/cm3 and a flash point of 205.2±23.2 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 28279-49-4
Jingsj CID: J-1015889-1
Molecular Formula: C₆H₄BrN₃
Molecular Weight: 198.020 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	227-228℃ (water )
Boiling Point	415.7±25.0 °C at 760 mmHg
Density	1.9±0.1 g/cm3
Flash Point	205.2±23.2 °C
Exact Mass	196.958847
PSA	41.57000
LogP	1.39
Vapor Pressure	0.0±0.9 mmHg at 25°C
Refractive Index	1.746

GHS Safety & Compliance

IrritantSignal word: Warning

H302 — Harmful if swallowed
H315 — Causes skin irritation
H319 — Causes serious eye irritation
H335 — May cause respiratory irritation

Customs & Trade Information

HS Code	2933990090
Summary	2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. 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 6-Bromo-1H-imidazo[4,5-b]pyridine?

The CAS number of 6-Bromo-1H-imidazo[4,5-b]pyridine is 28279-49-4.

What are the molecular formula and molecular weight of 6-Bromo-1H-imidazo[4,5-b]pyridine?

6-Bromo-1H-imidazo[4,5-b]pyridine has molecular formula C6H4BrN3 and molecular weight 198.020 g/mol.

Is 6-Bromo-1H-imidazo[4,5-b]pyridine hazardous?

6-Bromo-1H-imidazo[4,5-b]pyridine has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.

What are the upstream and downstream products of 6-Bromo-1H-imidazo[4,5-b]pyridine?

For 6-Bromo-1H-imidazo[4,5-b]pyridine, Upstream Products: 5-Bromo-2,3-diaminopyridine, Formic Acid, Triethyl orthoformate; Downstream Products: 6-Bromo-1,3-dihydro-2H-imidazo[4,5-b]pyridine-2-thione.

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. "6-Bromo-1H-imidazo[4,5-b]pyridine (CAS 28279-49-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1015889-1 (accessed 2026-11-09).

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