Imidazole
SIAL/56750 - puriss. p.a., ≥99.5% (GC)
Synonym: 1,3-
CAS Number: 288-32-4
Empirical Formula (Hill Notation): C3H4N2
Molecular Weight: 68.08
EC Number: 206-019-2
MDL Number: MFCD00005183
Linear Formula: C3H4N2
Product Type: Chemical
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: 56750-100G
This image depicts SKU: 56750-100G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: 56750-500G
This image depicts SKU: 56750-500G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: 56750-1KG
This image depicts SKU: 56750-1KG
| anion traces | chloride (Cl-): ≤50 mg/kg |
| sulfate (SO42-): ≤50 mg/kg | |
| assay | ≥99.5% (GC) |
| bp | 256 °C (lit.) |
| cation traces | Ca: ≤10 mg/kg |
| Cd: ≤5 mg/kg | |
| Co: ≤5 mg/kg | |
| Cr: ≤5 mg/kg | |
| Cu: ≤5 mg/kg | |
| Fe: ≤5 mg/kg | |
| K: ≤50 mg/kg | |
| Mg: ≤5 mg/kg | |
| Mn: ≤5 mg/kg | |
| Na: ≤50 mg/kg | |
| Ni: ≤5 mg/kg | |
| Pb: ≤5 mg/kg | |
| Zn: ≤5 mg/kg | |
| form | flakes |
| powder or crystals | |
| grade | puriss. p.a. |
| ign. residue (900 °C) | ≤0.1% |
| InChI | 1S/C3H4N2/c1-2-5-3-4-1/h1 |
| InChI key | RAXXELZNTBOGNW-UHFFFAOYSA |
| mp | 88-91 °C |
| 88-91 °C (lit.) | |
| pH | 9.5-11.0 (25 °C, 50 mg/mL in H2O) |
| pKa (25 °C) | 6.95 |
| Quality Level | 200  |
| SMILES string | c1c[nH]cn1 |
| solubility | alcohol: soluble(lit.) |
| chloroform: soluble(lit.) | |
| pyridine: soluble(lit.) | |
| water: soluble(lit.) | |
| vapor pressure | <1 mmHg ( 20 °C) |
| Application: | Excellent for buffers in the range of pH 6.2-7.8 |
| Application: | Imidazole can be used as a catalyst: • For the silylation of alcohols, carboxylic acids, and amines in the presence of silyl chloride in DMF. • In the peptide coupling using the triphenyl phosphite. • To prepare acid chlorides from the corresponding carboxylic acids and phosgene. It can also be used in the following reactions: • Imidazole-PPh3/I2 catalytic system used in the conversion of alcohols into iodides • Imidazole-PPh3/I2 is used in the diol deoxygenation reaction. |
| General description: | Imidazole is an aromatic heterocyclic compound with a five-membered planar ring. It is an amphoteric compound because of the presence of both an acidic NH and a basic nitrogen atom. Imidazole is an essential component of many important molecules including natural products, bioactive molecules, ionic liquids, and imidazolium. It serves as a building block for the synthesis of various drug molecules. |
| Other Notes: | For titration of aspartic acid and glutamic acid |
| Packaging: | 1 kg in poly bottle |
| Packaging: | 100, 500 g in poly bottle |
| Symbol |    GHS05,GHS07,GHS08 |
| Signal word | Danger |
| Hazard statements | H302 - H314 - H360D |
| Precautionary statements | P260 - P280 - P301 + P312 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 |
| Hazard Codes | T |
| Risk Statements | 61-22-34 |
| Safety Statements | 53-26-36/37/39-45 |
| RIDADR | UN 3263 8 / PGIII |
| WGK Germany | WGK 2 |
| Flash Point(F) | 293.0 °F - closed cup |
| Flash Point(C) | 145 °C - closed cup |
| Purity | ≥99.5% (GC) |
| bp | 256 °C (lit.) |
| mp | 88-91 °C (lit.); 88-91 °C |
| UNSPSC | 12352005 |