2-Ethylimidazole
Pharmaceutical Materials 2025-03-02
CAS Number: 1072-62-4.
Molecular Formula: C5H8N2.
Molecular Weight: 96.13 g/mol.
Appearance: White or yellowish crystalline powder. Usage: It is used as an intermediate in pharmaceuticals, a catalyst in organic synthesis, and a curing agent for epoxy resins.
Names and Identifiers
| Name | 2-Ethylimidazole |
| Synonyms | 2EMI Curezol 2EZ 2-Ethylmidazole 2-Ethylimidazole 2-ETHYLIMIDAZOLE 2-ethvllmidazole RESICURE(TM) NO 45 Imidazole, 2-ethyl- 2-ethyl-1h-imidazol 2-ethyl-1h-imidazole 2-ethyl-1H-imidazole 1H-Imidazole, 2-ethyl- |
| CAS | 1072-62-4 |
| EINECS | 214-011-5 |
| InChI | InChI=1/C5H8N2/c1-2-5-6-3-4-7-5/h3-4H,2H2,1H3,(H,6,7) |
Physico-chemical Properties
| Molecular Formula | C5H8N2 |
| Molar Mass | 96.13 |
| Density | 1.5519 (rough estimate) |
| Melting Point | 78-81 °C (lit.) |
| Boling Point | 268 °C (lit.) |
| Flash Point | 159 °C |
| Water Solubility | Soluble in water (617 g/L at 20°C) |
| Vapor Presure | 0.047Pa at 20℃ |
| Appearance | White crystal |
| Color | White to Light yellow |
| BRN | 106381 |
| pKa | 14.38±0.10(Predicted) |
| Storage Condition | Sealed in dry,Room Temperature |
| Sensitive | `sensitive` to heat and air, easy to absorb moisture |
| Refractive Index | 1.5000 (estimate) |
| MDL | MFCD00005192 |
| Physical and Chemical Properties | White or light yellow crystals, soluble in water, alcohol, acetone and benzene. Melting Point 61-66 °c. |
| Use | Used as curing agent for epoxy resin |
Risk and Safety
| Risk Codes | R36/37/38 – Irritating to eyes, respiratory system and skin. R41 – Risk of serious damage to eyes R38 – Irritating to the skin R22 – Harmful if swallowed |
| Safety Description | S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 – Wear suitable protective clothing. S37/39 – Wear suitable gloves and eye/face protection |
| WGK Germany | 3 |
| TSCA | Yes |
| HS Code | 29332900 |
| Hazard Note | Irritant |
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