4-Bromo-1H-imidazole
Also known as: 4-Bromoimidazole, 4-Bromo-1H-imidazole, 4(or5)-bromoimidazole, 4-bromo-imidazole, 5-bromo-1H-imidazole, 1H-Imidazole, 4-bromo-, 1H-Imidazole, 5-bromo-
4-Bromo-1H-imidazole (CAS 2302-25-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C3H3BrN2 and a molecular weight of 146.97 g/mol. Key properties include a melting point of 131-135 °C(lit.), a boiling point of 324.7±15.0 °C at 760 mmHg, a density of 1.9±0.1 g/cm3 and a flash point of 150.2±20.4 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic 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.
- 2302-25-2
- Jingsj CID
- J-19143-5
- Molecular Formula
- C3H3BrN2
- Molecular Weight
- 146.97 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 131-135 °C(lit.) |
|---|---|
| Boiling Point | 324.7±15.0 °C at 760 mmHg |
| Density | 1.9±0.1 g/cm3 |
| Flash Point | 150.2±20.4 °C |
| Exact Mass | 145.947952 |
| PSA | 28.68000 |
| LogP | 0.97 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.602 |
GHS Safety & Compliance
- H301 — Toxic if swallowed
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
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-1H-imidazole?
The CAS number of 4-Bromo-1H-imidazole is 2302-25-2.
What are the molecular formula and molecular weight of 4-Bromo-1H-imidazole?
4-Bromo-1H-imidazole has molecular formula C3H3BrN2 and molecular weight 146.97 g/mol.
Is 4-Bromo-1H-imidazole hazardous?
4-Bromo-1H-imidazole has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of 4-Bromo-1H-imidazole?
For 4-Bromo-1H-imidazole, Upstream Products: Imidazole, 2,4,5-Tribromoimidazole, 1,3-Dibromo-5,5-dimethylhydantoin; Downstream Products: 1-Benzyl-4-bromo-1H-imidazole, 1-Benzyl-5-bromo-1H-imidazole, Triphenylmethanol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Bromo-1H-imidazole (CAS 2302-25-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-19143-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.