1,2-Dimethylimidazole
Synonym(s):1,2-Dimethylimidazole
- CAS NO.:1739-84-0
- Empirical Formula: C5H8N2
- Molecular Weight: 96.13
- MDL number: MFCD00005294
- EINECS: 217-101-2
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-04-10 10:27:22
What is 1,2-Dimethylimidazole?
Chemical properties
colorless to yellow low melting mass
The Uses of 1,2-Dimethylimidazole
1,2-Dimethylimidazole was used in the synthesis of 1,2-dimethyl-3-n-butylimidazoliumchloride and 1,2-dimethyl-3-n-propylimidazolium chloride. It was also used in the synthesis of 1-(2-methoxyethyl)-2,3-dimethylimidazolium chloride and hexafluorophosphate salts.
The Uses of 1,2-Dimethylimidazole
1,2-Dimethylimidazole is used in the synthesis of 1,2-dimethyl-3-n-butylimidazoliumchloride and 1,2-dimethyl-3-n-propylimidazolium chloride. It also can be used in the synthesis of 1-(2-methoxyethyl)-2,3-dimethylimidazolium chloride and hexafluorophosphate salts.
Definition
ChEBI: 1,2-dimethylimidazole is a member of imidazoles.
General Description
1,2-Dimethylimidazole reacts with copper(II) tetraacetate to yield cis-bis(acetato)bis(1,2-dimethylimidazole) copper(II) complex. It undergoes Menschutkin reaction with benzyl bromide to yield 3-benzyl-1,2-dimethylimidazolium bromide and kinetics of reaction was studied in various ionic liquids and molecular organic solvents.
Flammability and Explosibility
Not classified
Purification Methods
Crystallise the imidazole from *benzene, dry and store it at 0-4o. The picrate crystallises from H2O or EtOH with m 181o. [Balaban & Pymann J Chem Soc 125 1570 1924, Gorun et al. J Am Chem Soc 109 4244 1987, Beilstein 23 H 66, 23 II 56, 23 III/IV 594.]
Properties of 1,2-Dimethylimidazole
| Melting point: | 37-39 °C (lit.) |
| Boiling point: | 204 °C (lit.) |
| Density | 1.084 g/mL at 25 °C (lit.) |
| vapor pressure | 1 mm Hg ( 20 °C) |
| refractive index | 1.5000 (estimate) |
| Flash point: | 198 °F |
| storage temp. | Store below +30°C. |
| form | Low Melting Mass |
| pka | 7.76±0.25(Predicted) |
| color | Colorless to yellow |
| Specific Gravity | 1.084 |
| PH | 12.6 (500g/l, H2O, 20℃) |
| Water Solubility | Soluble in water. |
| BRN | 108457 |
| CAS DataBase Reference | 1739-84-0(CAS DataBase Reference) |
| NIST Chemistry Reference | 1H-Imidazole, 1,2-dimethyl-(1739-84-0) |
| EPA Substance Registry System | 1H-Imidazole, 1,2-dimethyl- (1739-84-0) |
Safety information for 1,2-Dimethylimidazole
| Signal word | Danger |
| Pictogram(s) |
![]() Corrosion Corrosives GHS05 ![]() Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H302:Acute toxicity,oral H315:Skin corrosion/irritation H318:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P280:Wear protective gloves/protective clothing/eye protection/face protection. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 1,2-Dimethylimidazole
| InChIKey | GIWQSPITLQVMSG-UHFFFAOYSA-N |
1,2-Dimethylimidazole manufacturer
Triveni Interchem Private Limited (Group Of Triveni Chemicals)
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