5,6-Dimethylbenzimidazole
Synonym(s):5,6-Dimethylbenzimidazole
- CAS NO.：582-60-5
- Empirical Formula: C9H10N2
- Molecular Weight: 146.19
- MDL number: MFCD00005603
- EINECS: 209-488-1
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-27 23:56:01
What is 5,6-Dimethylbenzimidazole?
Chemical properties
light beige powder
Definition
ChEBI: A dimethylbenzimidazole carrying methyl substituents at positions 5 and 6.
Synthesis Reference(s)
Synthetic Communications, 16, p. 365, 1986 DOI: 10.1080/00397918608076319
Purification Methods
Crystallise 5,6-dimethylbenzimidazole from diethyl ether. It sublimes at 140o/3mm. [Beilstein 23/6 V 454.]
Properties of 5,6-Dimethylbenzimidazole
| Melting point: | 202-205 °C (lit.) |
| Boiling point: | 255.81°C (rough estimate) |
| Density | 1.0976 (rough estimate) |
| refractive index | 1.5600 (estimate) |
| storage temp. | Store below +30°C. |
| solubility | Soluble in ethanol (50 mg/ml). |
| form | Powder |
| pka | 13.48±0.30(Predicted) |
| color | Light beige |
| Water Solubility | soluble |
| Merck | 14,3236 |
| BRN | 116595 |
| CAS DataBase Reference | 582-60-5(CAS DataBase Reference) |
| EPA Substance Registry System | 1H-Benzimidazole, 5,6-dimethyl- (582-60-5) |
Safety information for 5,6-Dimethylbenzimidazole
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H227:Flammable liquids H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P332+P313:IF SKIN irritation occurs: Get medical advice/attention. P337+P313:IF eye irritation persists: Get medical advice/attention. P370+P378:In case of fire: Use … for extinction. P403+P235:Store in a well-ventilated place. Keep cool. |
Computed Descriptors for 5,6-Dimethylbenzimidazole
| InChIKey | LJUQGASMPRMWIW-UHFFFAOYSA-N |
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