5,6-Dimethylbenzimidazole

Synonym(s):5,6-Dimethylbenzimidazole

light beige powder

ChEBI: A dimethylbenzimidazole carrying methyl substituents at positions 5 and 6.

Synthetic Communications, 16, p. 365, 1986 DOI: 10.1080/00397918608076319

Crystallise 5,6-dimethylbenzimidazole from diethyl ether. It sublimes at 140o/3mm. [Beilstein 23/6 V 454.]

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)

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.