4-Bromo-2-nitro-1H-imidazole

Also known as: 5-bromo-2-nitro-1H-imidazole, 1H-Imidazole, 4-bromo-2-nitro-, 1H-Imidazole, 5-bromo-2-nitro-, 4-BROMO-2-NITRO-1H-IMIDAZOLE, 5-bromo-2-nitro-1H-Imidazole

4-Bromo-2-nitro-1H-imidazole (CAS 121816-84-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C3H2BrN3O2 and a molecular weight of 191.971 g/mol. Key properties include a boiling point of 427.8±37.0 °C at 760 mmHg, a density of 2.2±0.1 g/cm3 and a flash point of 212.5±26.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 121816-84-0
Jingsj CID: J-1126569-3
Molecular Formula: C₃H₂BrN₃O₂
Molecular Weight: 191.971 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	427.8±37.0 °C at 760 mmHg
Density	2.2±0.1 g/cm3
Flash Point	212.5±26.5 °C
Exact Mass	190.933029
PSA	74.50000
LogP	1.20
Vapor Pressure	0.0±1.0 mmHg at 25°C
Refractive Index	1.664

Customs & Trade Information

HS Code	2933290090
Summary	2933290090. other compounds containing an unfused imidazole 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 4-Bromo-2-nitro-1H-imidazole?

The CAS number of 4-Bromo-2-nitro-1H-imidazole is 121816-84-0.

What are the molecular formula and molecular weight of 4-Bromo-2-nitro-1H-imidazole?

4-Bromo-2-nitro-1H-imidazole has molecular formula C3H2BrN3O2 and molecular weight 191.971 g/mol.

What are the upstream and downstream products of 4-Bromo-2-nitro-1H-imidazole?

For 4-Bromo-2-nitro-1H-imidazole, Upstream Products: 4-Bromo-1-trityl-1H-imidazole; Downstream Products: 4-bromo-1-methyl-2-nitro-1H-imidazole.

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. "4-Bromo-2-nitro-1H-imidazole (CAS 121816-84-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1126569-3 (accessed 2026-11-09).

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