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Imidazole

Also known as: 1,3-DIAZA-2,4-CYCLOPENTADIENE, 1,3-DIAZOLE, 1,3-Diaza-2,4-cyclopentadiene,Glyoxaline, 1,3-diaza-2,4-cyclopentadiene, 1,3-diazole, 1,3-imidazole, 1-imidazole, 1H-IMIDAZOLE, 1H-imidazole, Clotrimazole Impurity 4, EINECS 206-019-2, GLYOXALIN, GLYOXALINE, IMD, IMIDAZOLE, IMINAZOLE, Imidazoie, Imidazol, Imidazole buffer, Imutex

Imidazole (CAS 288-32-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C3H4N2 and a molecular weight of 68.077 g/mol. Key properties include a melting point of 88-91 °C(lit.), a boiling point of 257.0±9.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 145.0±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed and H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
288-32-4
Jingsj CID
J-20074-3
Molecular Formula
C3H4N2
Molecular Weight
68.077 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point88-91 °C(lit.)
Boiling Point257.0±9.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point145.0±0.0 °C
Exact Mass68.037445
PSA28.68000
LogP-0.16
Vapor Pressure0.0±0.5 mmHg at 25°C
Refractive Index1.528
Additional Property633 g/L (20 ºC)

GHS Safety & Compliance

Corrosion / Irritant / Health HazardSignal word: Danger
  • H302 — Harmful if swallowed
  • H314 — Causes severe skin burns and 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 Imidazole?

The CAS number of Imidazole is 288-32-4.

What are the molecular formula and molecular weight of Imidazole?

Imidazole has molecular formula C3H4N2 and molecular weight 68.077 g/mol.

Is Imidazole hazardous?

Imidazole has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H314 — Causes severe skin burns and eye damage.

What are the upstream and downstream products of Imidazole?

For Imidazole, Upstream Products: tert-Butyl 1H-imidazole-1-carboxylate, 1-(p-Toluenesulfonyl)imidazole, 1H-Imidazole hydrochloride; Downstream Products: 1-Benzyl-1H-imidazole-2-carbaldehyde, Di(1H-imidazol-1-yl)methanimine, Acetylimidazole diethyl acetal.

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

Last updated:

How to cite: Jingsj. "Imidazole (CAS 288-32-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-20074-3 (accessed 2026-11-06).

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