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Substance Name: Benzimidazole
RN: 51-17-2
UNII: E24GX49LD8
InChIKey: HYZJCKYKOHLVJF-UHFFFAOYSA-N
Classification Codes
- Agricultural Chemical
- Anthelmintics
- Anti-Infective Agents
- Antiparasitic Agents
- Experimental Pesticide
- Mutation Data
- Unspecified / Unclassified Pesticide
Molecular Formula
- C7-H6-N2
Molecular Weight
- 118.1384
- All
- Links to Resources
- Names & Synonyms
- Registry Numbers
- Structure Descriptors
- Toxicity
- Physical Properties
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Names and Synonyms
Name of Substance
- Benzimidazole
Synonyms
- 1,3-Benzodiazole
- 1,3-Diazaindene
- 1H-Benzimidazole
- 3-Azaindole
- 5-23-06-00196 (Beilstein Handbook Reference)
- AI3-03737
- Azindole
- Benzimidazole
- Benziminazole
- Benzoglyoxaline
- Benzoimidazole
- BRN 0109682
- BZI
- CCRIS 5967
- EINECS 200-081-4
- HSDB 2797
- N,N'-Methenyl-o-phenylenediamine
- NSC 759
- o-Benzimidazole
- UNII-E24GX49LD8
Systematic Names
- 1H-Benzimidazole
- Benzimidazole
Registry Numbers
CAS Registry Number
- 51-17-2
FDA UNII
- E24GX49LD8
Other Registry Numbers
- 116421-27-3
- 25463-25-6
- 79351-71-6
System Generated Number
- 0000051172
Structure Descriptors
InChI
InChI=1S/C7H6N2/c1-2-4-7-6(3-1)8-5-9-7/h1-5H,(H,8,9)InChIKey
HYZJCKYKOHLVJF-UHFFFAOYSA-NSmiles
c1ccc2[nH]cnc2c1Toxicity
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LD50 | intraperitoneal | 445mg/kg (445mg/kg) | Pharmaceutical Chemistry Journal Vol. 14, Pg. 130, 1980. | |
| mouse | LD50 | intravenous | 280mg/kg (280mg/kg) | "Principles of Medicinal Chemistry," Foye, W.O., et al., eds., Philadelphia, Lea & Febiger, 1974Vol. -, Pg. 246, 1974. | |
| mouse | LD50 | oral | 2910mg/kg (2910mg/kg) | LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES | Journal of Pharmacology and Experimental Therapeutics. Vol. 105, Pg. 486, 1952. |
| rat | LD50 | intraperitoneal | 385mg/kg (385mg/kg) | PERIPHERAL NERVE AND SENSATION: FLACCID PARALYSIS WITHOUT ANESTHESIA (USUALLY NEUROMUSCULAR BLOCKAGE) | Archives Internationales de Pharmacodynamie et de Therapie. Vol. 95, Pg. 123, 1953. |
| rat | LDLo | oral | 500mg/kg (500mg/kg) | National Academy of Sciences, National Research Council, Chemical-Biological Coordination Center, Review. Vol. 5, Pg. 22, 1953. |
Physical Properties
| Physical Property | Value | Units | Temp (deg C) | Source |
|---|---|---|---|---|
| Melting Point | 170.5 | deg C | EXP | |
| Boiling Point | >360 | deg C | EXP | |
| pKa Dissociation Constant | 5.3 | (none) | 25 | EXP |
| log P (octanol-water) | 1.32 | (none) | EXP | |
| Water Solubility | 2010 | mg/L | 20 | EXP |
| Vapor Pressure | 7.64E-05 | mm Hg | 25 | EST |
| Henry's Law Constant | 3.67E-07 | atm-m3/mole | 25 | EST |
| Atmospheric OH Rate Constant | 3.60E-11 | cm3/molecule-sec | 25 | EST |
Physical property data is provided to ChemIDplus by SRC, Inc.