Benzimidazole , AR,>98.0%(HPLC) , 51-17-2

Synonym(s):
1,3-Benzodiazole;Benzimidazole;BZI

CAS NO.：51-17-2

Empirical Formula: C7H6N2

Molecular Weight: 118.14

MDL number: MFCD00005585

EINECS: 200-081-4

PRODUCT Properties

• Melting point: 169-171 °C (lit.)
• Boiling point: 360 °C
• Density: 1.1151 (rough estimate)
• refractive index: 1.5500 (estimate)
• Flash point: 360°C
• storage temp.: Store below +30°C.
• solubility: xylene: soluble1g in 2g (boiling)(lit.)
• pka: 5.532(at 25℃)
• form: Crystalline Powder or Crystals
• color: Beige to brown
• Water Solubility: sparingly soluble
• λmax: 271nm(MeOH)(lit.)
• Merck: 14,1081
• BRN: 109682
• Stability: Stable. Combustible. Incompatible with strong oxidising agents.
• InChIKey: HYZJCKYKOHLVJF-UHFFFAOYSA-N
• LogP: 1.320
• CAS DataBase Reference: 51-17-2(CAS DataBase Reference)
• NIST Chemistry Reference: 1H-Benzimidazole(51-17-2)
• EPA Substance Registry System: Benzimidazole (51-17-2)

Description and Uses

Benzimidazole is a building block for making anthelmintic drugs like albendazole, mebendazole and triclabendazole and anti-ulcer drugs like pantoprazole, rabeprazole, lansoprazole and omeprazole. It is used in the preparation of pyrene derived benzimidazole linked polymers (BILPs), which are used for selective carbon dioxide separation applications due to their properties like porous materials, regenerability and sorbent selection parameters.

Safety

• Symbol(GHS): GHS07
• Signal word: Warning
• Hazard statements: H302
• Precautionary statements: P264-P270-P301+P312-P501
• Hazard Codes: Xi
• Risk Statements: 36/37/38
• Safety Statements: 37/39-26-24/25
• WGK Germany: 3
• RTECS: DD5425000
• Hazard Note: Irritant
• TSCA: Yes
• HS Code: 29339990
• Hazardous Substances Data: 51-17-2(Hazardous Substances Data)
• Toxicity: LD50 oral in mouse: 2910mg/kg