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| | 5-Nitrobenzimidazole Basic information |
| | 5-Nitrobenzimidazole Chemical Properties |
| Melting point | 207-210 °C | | Boiling point | 290.19°C (rough estimate) | | density | 1.4141 (rough estimate) | | bulk density | 270kg/m3 | | refractive index | 1.5500 (estimate) | | storage temp. | Store below +30°C. | | solubility | 0.5g/l | | pka | 10.95±0.10(Predicted) | | form | Solid | | color | Light Beige | | PH | 6 (10g/l, H2O, 20℃)(slurry) | | Water Solubility | <0.01 g/100 mL at 16.5 ºC | | BRN | 7926 | | Henry's Law Constant | 2.7×101 mol/(m3Pa) at 25℃, HSDB (2015) | | Stability: | Stable. Combustible. Incompatible with strong oxidizing agents, strong bases. | | InChI | 1S/C7H5N3O2/c11-10(12)5-1-2-6-7(3-5)9-4-8-6/h1-4H,(H,8,9) | | InChIKey | XPAZGLFMMUODDK-UHFFFAOYSA-N | | SMILES | [N+](=O)([O-])c1cc2[nH]cnc2cc1 | | CAS DataBase Reference | 94-52-0(CAS DataBase Reference) | | EPA Substance Registry System | 5-Nitrobenzimidazole (94-52-0) |
| | 5-Nitrobenzimidazole Usage And Synthesis |
| Chemical Properties | white or pale yellow powder | | Uses | Antifogging agent in photographic developers. | | Uses | 5-Nitrobenzimidazole acts as a reagent in the synthesis of benzimidazoles derivatives with antibacterial and antifungal activities. It also functions as a reagent in the synthesis of xanthine oxidase, a key enzyme that catalyze xanthine to uric acid causing hyperuricemia in humans. | | General Description | Off-white to pale yellow fluffy powder. | | Air & Water Reactions | Insoluble in water. | | Reactivity Profile | 5-Nitrobenzimidazole is incompatible with strong oxidizing agents and strong bases. | | Fire Hazard | Flash point data for 5-Nitrobenzimidazole are not available but 5-Nitrobenzimidazole is probably combustible. | | Synthesis | First, 4-nitrophthalimide (1 g) was mixed with formic acid (0.74 mL) in 5N hydrochloric acid (70 mL), stirred and heated to reflux for 24 hours. Upon completion of the reaction, the mixture was cooled to room temperature, neutralized with 10% sodium hydroxide solution and the precipitate was isolated. Subsequently, the precipitate was recrystallized with water and dried to give 5-nitrobenzimidazole (0.69 g) [37]. | | References | [1] Molecules, 2015, vol. 20, # 8, p. 15206 - 15223
[2] Journal of the Korean Chemical Society, 2010, vol. 54, # 5, p. 589 - 593
[3] Journal of the Chilean Chemical Society, 2012, vol. 57, # 2, p. 1122 - 1125,4
[4] Journal of Medicinal Chemistry, 2015, vol. 58, # 24, p. 9591 - 9600
[5] Journal of the Chemical Society of Pakistan, 2018, vol. 40, # 2, p. 366 - 374 |
| | 5-Nitrobenzimidazole Preparation Products And Raw materials |
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