Imidazole
CAS Number
288-32-4
EC Number
206-019-2
What is Imidazole?
Imidazole (CAS 288-32-4) is a five-membered nitrogen-containing heterocycle used in pharmaceutical synthesis, polymer chemistry, and industrial processing.
Where is Imidazole used?
- Pharmaceutical manufacturing: key intermediate in the synthesis of antifungal agents, antihistamines, and active pharmaceutical ingredients
- Epoxy resin formulators: curing agent and cure accelerator in electronics-grade laminates and adhesive systems
- Water treatment and industrial processes: pH buffer and corrosion inhibitor precursor
- Agricultural chemical producers incorporate it as an intermediate in the synthesis of imidazole-based fungicides and plant growth regulators.
Commercial specifications
- High-purity grades meeting USP and Ph. Eur. specifications for pharmaceutical use
- Bulk quantities in fiber drums or bags; reagent-grade material for laboratory and research procurement
Other Names (Synonyms)
pyrro[b]monazole|N,N'-vinyleneformamidine|N,N'-1,2-ethenediylmethanimidamide|miazole|iminazole|glyoxalin|1,3-diaza-2,4-cyclopentadiene|IMD
What are the physical properties of Imidazole?
Melting Point 90.5 °C
Boiling Point 256.00 °C
Density 1.12 g/cm³
Flash Point 293 °F
Appearance White to off white crystals
Color white
Odor Amine like
Form crystalline
Water Solubility 633 g/L (20 ºC)
Vapor Pressure <1 mm Hg ( 20 °C)
Refractive Index 1.4801
pH 9.5-11.0 (25℃, 50mg/mL in H2O)
Log P -0.02 at 25℃
How is Imidazole classified and handled safely? Learn More
Danger
GHS05· Corrosive GHS07· Irritant GHS08· Health Hazard
Hazard Statements
H302 Harmful if swallowed
H314 Causes severe skin burns and eye damage
H318 Causes serious eye damage
H319 Causes serious eye irritation
Precautionary Statements
P203 Obtain, consult and follow expert instructions for use.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
Which trade and regulatory codes apply to Imidazole?
HS Code 29332900
UN Number 2923
ADR Class 8
Packing Group III
Storage Class 6.1C - Combustible acute toxic Cat.3
toxic compounds or compounds which causing chronic effects
WGK (Germany) 1