Imidazole
SIAL/I2399 - ACS reagent, ≥99% (titration)
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: I2399-100G
This image depicts SKU: I2399-100G
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: I2399-500G
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: I2399-500G
This image depicts SKU: I2399-500G
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: I2399-100G
| assay | ≥99% (titration) |
| bp | 256 °C (lit.) |
| cation traces | Fe: ≤0.001% |
| grade | ACS reagent |
| ign. residue | ≤0.1% |
| impurities | ≤0.2% water |
| InChI | 1S/C3H4N2/c1-2-5-3-4-1/h1 |
| InChI key | RAXXELZNTBOGNW-UHFFFAOYSA |
| mp | 88-91 °C (lit.) |
| pH | 9.5-11.0 (25 °C, 5% in H2O) |
| pKa (25 °C) | 6.95 |
| Quality Level | 200  |
| SMILES string | c1c[nH]cn1 |
| vapor pressure | <1 mmHg ( 20 °C) |
| Application: | Excellent for buffers in the range of pH 6.2-7.8 |
| General description: | Imidazole is a five-membered heterocycle that is found in many naturally occurring compounds. It exhibits both acidic and basic properties. It is reported to be an inhibitor of thromboxane formation. Its vertical spectrum and the radiationless decay have been recorded and analyzed. |
| Legal Information: | Redi-Dri is a trademark of Sigma-Aldrich Co. LLC |
| Other Notes: | Go to Redi-Dri™ Product Listing 792527 |
| 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% (titration) |
| bp | 256 °C (lit.) |
| mp | 88-91 °C (lit.) |
| UNSPSC | 12352005 |