2-amino-5-nitro pyridine
2-Amino-5-nitropyridine
CAS: 4214-76-0
Molecular Formula: C5H5N3O2
2-amino-5-nitro pyridine - Names and Identifiers
| Name | 2-Amino-5-nitropyridine |
| Synonyms | NSC 23774 AKOS 237-42 TIMTEC-BB SBB004178 5-nitropyridin-2-amine 5-nitro-2-pyridinamine 5-nitropyridine-2-aMine 2-AMINO-5-NITROPYRIDINE 2-Amino-5-nitropyridine 2-amino-5-nitro pyridine 2-amino-5-nitropyridinium 5-NITRO-PYRIDIN-2-YLAMINE Methyl-4-fluoro-5-nitrobenzoate 2-AMINO-5-NITROPYRIDINE FOR SYNTHESIS |
| CAS | 4214-76-0 |
| EINECS | 224-145-6 |
| InChI | InChI=1/C5H5N3O2/c6-5-2-1-4(3-7-5)8(9)10/h1-3H,(H2,6,7)/p+1 |
| InChIKey | UGSBCCAHDVCHGI-UHFFFAOYSA-N |
2-amino-5-nitro pyridine - Physico-chemical Properties
| Molecular Formula | C5H5N3O2 |
| Molar Mass | 139.11 |
| Density | 1.4551 (rough estimate) |
| Melting Point | 186-188 °C (lit.) |
| Boling Point | 255.04°C (rough estimate) |
| Flash Point | 224°(435°F) |
| Solubility | 1.6g/l |
| Vapor Presure | 4.15E-05mmHg at 25°C |
| Appearance | Yellow fine crystal |
| Color | Yellow |
| BRN | 120353 |
| pKa | 2.82±0.13(Predicted) |
| Storage Condition | Keep in dark place,Inert atmosphere,Room temperature |
| Sensitive | Light Sensitive |
| Refractive Index | 1.5900 (estimate) |
| MDL | MFCD00006325 |
| Physical and Chemical Properties | Melting point 186-190°C |
2-amino-5-nitro pyridine - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39 - Wear suitable gloves and eye/face protection S24/25 - Avoid contact with skin and eyes. S36 - Wear suitable protective clothing. |
| WGK Germany | 3 |
| TSCA | Yes |
| HS Code | 29333999 |
| Hazard Note | Irritant |
2-amino-5-nitro pyridine - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| Uses | 2-amino-5-nitropyridine is used as an intermediate in organic synthesis and medicine. |
| Production method | is obtained by nitration of 2-aminopyridine. At a temperature of 50°C, add 2-aminopyridine to concentrated sulfuric acid, and then add fuming nitric acid dropwise, the temperature does not exceed 50°C. Keep temperature at 45 ℃ for 2h and stir at room temperature for 4h. The reaction liquid is poured into crushed ice, and ammonia water is added below 5 ℃ to adjust to pH6, and crystals are precipitated. Filtering, drying. Recrystallized with water to obtain light yellow flake with 75% yield |
Last Update：2024-04-10 22:29:15
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