甲硝唑EP杂质A
2-Methyl-5-nitroimidazole
CAS: 88054-22-2
Molecular Formula: C4H5N3O2
甲硝唑EP杂质A - Names and Identifiers
甲硝唑EP杂质A - Physico-chemical Properties
| Molecular Formula | C4H5N3O2 |
| Molar Mass | 127.10 |
| Density | 1.426 |
| Melting Point | 252-254℃ |
| Boling Point | 0°C |
| Flash Point | 0°C |
| Water Solubility | Slightly soluble in ethanol, easily soluble in diluted acid and diluted alkali. |
| Solubility | Slightly soluble in ethanol, easily soluble in diluted acid and diluted alkali. |
| Appearance | Shape Powder, color White to beige |
| Storage Condition | Refrigerator |
| Refractive Index | 1.5000 (estimate) |
| MDL | MFCD00151322 |
| Physical and Chemical Properties | Melting point 252-254°C. |
| Use | For the preparation of drugs metronidazole and diomeprazole |
甲硝唑EP杂质A - Risk and Safety
| Risk Codes | 22 - Harmful if swallowed |
| Safety Description | S24/25 - Avoid contact with skin and eyes. |
| HS Code | 29332900 |
甲硝唑EP杂质A - Upstream Downstream Industry
| Raw Materials | 2-Methylimidazole Nitric acid |
| Downstream Products | 2-Methyl-5-nitroimidazole-1-ethanol |
甲硝唑EP杂质A - Reference
| Reference Show more | 1. [IF=10.588] Lingyu Li et al."AuNPs/NiFe-LDHs-assisted laser desorption/ionization mass spectrometry for efficient analysis of metronidazole and its metabolites in water samples."J Hazard Mater. 2022 Feb;423:126893 |
甲硝唑EP杂质A - Nature
| melting point | 252 °C |
| density | 1.426 |
| refractive index | 1.5000 (estimate) |
| solubility | Slightly soluble in ethanol, easily soluble in diluted acid and diluted alkali. |
| morphology | Powder |
| color | White to beige |
Last Update：2024-04-10 22:29:15
甲硝唑EP杂质A - Production method
from 2-methylimidazole by nitration. Sulfuric acid, 2-methylimidazole and sodium sulfate are successively put into the reaction pot, stirred and heated, nitric acid is added dropwise at 150-160 ℃, after adding, the solution is reacted for 1h. After removing the temperature to below 140 ℃, add water and adjust the pH to 3.5-4 with ammonia to precipitate crystallization. Filter, wash with water to neutral, dry to obtain 2-methyl-5-nitroimidazole.
Last Update：2024-04-10 22:29:15
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View History
甲硝唑EP杂质A
1-(4-CHLOROPHENYL)UREA,CERTIFIED 标准品
[2-(1-哌啶甲基)苯基]溴化镁 0.25M 四氢呋喃
METHYL 4-(4-(BIS(2-CHLOROETHYL)AMINO)PHENYL)BUTYARTE
1-ButylpyridiniuM heptachlorodialuMinate
4-(3-羟基-4-甲酰基苯氧基)丁酸乙酯
1H-苯并[D][1,2,3]三唑-1-基二甲基氨基甲酸酯
1-STEAROYL-2-HYDROXY-SN-GLYCERO-3-PHOSPHO-L-SERINE (SODIUM SALT);18:0 LYSO PS
山梨糖醇糖浆
(5-氯-1H-苯并咪唑-2-甲基)-甲胺
1-(4-CHLOROPHENYL)UREA,CERTIFIED 标准品
[2-(1-哌啶甲基)苯基]溴化镁 0.25M 四氢呋喃
METHYL 4-(4-(BIS(2-CHLOROETHYL)AMINO)PHENYL)BUTYARTE
1-ButylpyridiniuM heptachlorodialuMinate
4-(3-羟基-4-甲酰基苯氧基)丁酸乙酯
1H-苯并[D][1,2,3]三唑-1-基二甲基氨基甲酸酯
1-STEAROYL-2-HYDROXY-SN-GLYCERO-3-PHOSPHO-L-SERINE (SODIUM SALT);18:0 LYSO PS
山梨糖醇糖浆
(5-氯-1H-苯并咪唑-2-甲基)-甲胺
Raw Materials for 甲硝唑EP杂质A
Downstream Products for 甲硝唑EP杂质A