1,2-Dimethylimidazole
Pharmaceutical Materials 2025-03-02
CAS Number: 1739-84-0
Molecular Formula: C5H8N2
Molecular Weight: 96.13 g/mol
Appearance: Reddish yellow liquid or white crystalline solid
Usage: Mainly used as a medicine intermediate and as a curing agent for epoxy resins.
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| Category | Details |
|---|---|
| Chemical Name | 1.2-Dimethylimidazole |
| Synonyms | 1.2-DimethyL1H-Imidazole, 1.2-Dimethyl-1h-imidazole, Dimethylimidazole, etc. |
| CAS Number | 1739-84-0 |
| Molecular Formula | C5H8N2 |
| Molecular Weight | 96.13 g/mol |
| Chemical Structure | A five-membered heterocyclic ring with two methyl groups attached at the 1 and 2 positions. |
| Appearance | White crystalline solid |
| Melting Point | 29-30°C |
| Boiling Point | Approximately 204-206°C |
| Density | 1.0800 g/cm³ (or 0.983 g/cm³, depending on source) |
| pH Value | 12.6 (500 g/l, H2O, 20°C) |
| Solubility | Soluble in organic solvents, such as alcohol and ether. |
| Chemical Properties | Basic in nature, can react with acids to form salts. Acts as a nucleophile in substitution reactions. |
| Applications | Used as a curing agent for epoxy resins and other types of resins. Functions as an intermediate in the pharmaceutical industry. Participates in various organic syntheses, such as alkylation, acylation, and condensation reactions. |
| Synthesis Methods | Various synthetic routes exist, including the reaction of 2-methylimidazole with suitable reagents like ethylene glycol monomethyl ether and dimethyl carbonate. |
| Safety Information | Considered a hazardous substance; handle with care. Store in a cool, dry place, away from flammable materials and direct sunlight. Wear appropriate personal protective equipment when handling. |
