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4-Iodo-1H-imidazole

Also known as: 4-Iodoimidazole, 4(5)-Iodoimidazole, 4(5)-Iodo-1H-imidazole, 5-Iodo-1H-imidazole, 1H-Imidazole, 4-iodo-, 1H-Imidazole, 5-iodo-, AKOS 91347

4-Iodo-1H-imidazole (CAS 71759-89-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C3H3IN2 and a molecular weight of 193.97 g/mol. Key properties include a melting point of 137-138°C, a boiling point of 348.5±15.0 °C at 760 mmHg, a density of 2.3±0.1 g/cm3 and a flash point of 164.5±20.4 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed and H318 — Causes serious eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
71759-89-2
Jingsj CID
J-33798-4
Molecular Formula
C3H3IN2
Molecular Weight
193.97 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point137-138°C
Boiling Point348.5±15.0 °C at 760 mmHg
Density2.3±0.1 g/cm3
Flash Point164.5±20.4 °C
Exact Mass193.934082
PSA28.68000
LogP1.15
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.688

GHS Safety & Compliance

Corrosion / IrritantSignal word: Danger
  • H302 — Harmful if swallowed
  • H318 — Causes serious eye damage

Customs & Trade Information

HS Code2933290090
Summary2933290090. 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-Iodo-1H-imidazole?

The CAS number of 4-Iodo-1H-imidazole is 71759-89-2.

What are the molecular formula and molecular weight of 4-Iodo-1H-imidazole?

4-Iodo-1H-imidazole has molecular formula C3H3IN2 and molecular weight 193.97 g/mol.

Is 4-Iodo-1H-imidazole hazardous?

4-Iodo-1H-imidazole has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H318 — Causes serious eye damage.

What are the upstream and downstream products of 4-Iodo-1H-imidazole?

For 4-Iodo-1H-imidazole, Upstream Products: 2,4,5-Triiodo-1H-imidazole, 4,5-Diiodo-1H-imidazole, Imidazole; Downstream Products: 1-Benzyl-4-iodo-1H-imidazole, 1-Benzyl-5-iodo-1H-imidazole, 4-Iodo-1-trityl-1H-imidazole.

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-Iodo-1H-imidazole (CAS 71759-89-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-33798-4 (accessed 2026-11-09).

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