5435-54-1
4-Hydroxy-3-nitropyridine
CAS: 5435-54-1;15590-90-6
Molecular Formula: C5H4N2O3
5435-54-1 - Names and Identifiers
| Name | 4-Hydroxy-3-nitropyridine |
| Synonyms | 3-NITRO-4-PYRIDONE 3-Nitro-4-pyridinol 3-NITROPYRIDIN-4-OL 3-NITRO-4-PYRIDINOL 4-Pyridinol, 3-nitro- 3-Nitro-4(1H)-pyridone LABOTEST-BB LT00068525 3-Nitro-1H-pyridin-4-one 3-NITRO-4(1H)-PYRIDINONE 3-nitropyridin-4(1H)-one 4-HYDROXY-3-NITROPRIDINE 3-nitro-4-hydroxypyridine 4-Hydroxy-3-nitropyridine 4-hydroxy-3-nitropytidine 3-nitro-4-hydroxy-pyridine 4(1H)-Pyridinone, 3-nitro- 4-Hydroxy-3-nitro pyridine 3-NITRO-1,4-DIHYDROPYRIDIN-4-ONE 4-Pyridinol,3-nitro-(6CI,7CI,9CI) 4-Hydroxy-3-Nitropyridine 3-Nitro-4-pyridinol 4-(benzyloxy)-3-ethoxy-N-ethyl-5-iodobenzamide |
| CAS | 5435-54-1 15590-90-6 |
| EINECS | 611-127-1 |
| InChI | InChI=1/C18H20INO3/c1-3-20-18(21)14-10-15(19)17(16(11-14)22-4-2)23-12-13-8-6-5-7-9-13/h5-11H,3-4,12H2,1-2H3,(H,20,21) |
| InChIKey | YUWOLBZMQDGRFV-UHFFFAOYSA-N |
5435-54-1 - Physico-chemical Properties
| Molecular Formula | C5H4N2O3 |
| Molar Mass | 140.1 |
| Density | 1.507±0.06 g/cm3(Predicted) |
| Melting Point | 285 °C (dec.) (lit.) |
| Boling Point | 382.1±22.0 °C(Predicted) |
| Flash Point | 244.6°C |
| Vapor Presure | 2.1E-09mmHg at 25°C |
| BRN | 1072928 |
| pKa | 0.13±0.14(Predicted) |
| Storage Condition | Inert atmosphere,Room Temperature |
| Refractive Index | 1.596 |
| MDL | MFCD00128874 |
5435-54-1 - 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. S36 - Wear suitable protective clothing. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S22 - Do not breathe dust. |
| WGK Germany | 3 |
| HS Code | 29333990 |
| Hazard Note | Toxic |
| Hazard Class | IRRITANT, IRRITANT-H |
5435-54-1 - Introduction
4-Hydroxy-3-nitropyridine(4-Hydroxy-3-nitropyridine) is an organic compound with the chemical formula C5H4N2O3. It has a pale yellow crystalline or powdery solid.
4-Hydroxy-3-nitropyridine is widely used in organic synthesis. It is an important intermediate for the synthesis of various organic compounds, such as drugs, pesticides, dyes and functional materials. It is useful as a starting material for the preparation of heterocyclic compounds, amino acid derivatives and catalysts.
There are several methods for preparing 4-Hydroxy-3-nitropyridine. The common method is obtained by reduction and hydroxylation of nitropyridine. Specifically, nitropyridine can be reduced to aminopyridine using a reducing agent (e. g., sodium nitrite), followed by an oxidation reaction to introduce a hydroxyl group (e. g., a peroxybenzophenone-sodium hydroxide system).
Regarding safety information, 4-Hydroxy-3-nitropyridine poses certain safety risks. It is a toxic substance that is irritating to the eyes, skin and respiratory system. Wear appropriate personal protective equipment such as goggles, gloves and protective masks during handling. Use should be well ventilated and avoid inhalation and contact with skin. In case of accidental contact, rinse immediately with plenty of water and seek medical help.
In addition, 4-Hydroxy-3-nitropyridine may also have environmental pollution risks. Please dispose of the waste correctly after use and comply with relevant laws and regulations.
4-Hydroxy-3-nitropyridine is widely used in organic synthesis. It is an important intermediate for the synthesis of various organic compounds, such as drugs, pesticides, dyes and functional materials. It is useful as a starting material for the preparation of heterocyclic compounds, amino acid derivatives and catalysts.
There are several methods for preparing 4-Hydroxy-3-nitropyridine. The common method is obtained by reduction and hydroxylation of nitropyridine. Specifically, nitropyridine can be reduced to aminopyridine using a reducing agent (e. g., sodium nitrite), followed by an oxidation reaction to introduce a hydroxyl group (e. g., a peroxybenzophenone-sodium hydroxide system).
Regarding safety information, 4-Hydroxy-3-nitropyridine poses certain safety risks. It is a toxic substance that is irritating to the eyes, skin and respiratory system. Wear appropriate personal protective equipment such as goggles, gloves and protective masks during handling. Use should be well ventilated and avoid inhalation and contact with skin. In case of accidental contact, rinse immediately with plenty of water and seek medical help.
In addition, 4-Hydroxy-3-nitropyridine may also have environmental pollution risks. Please dispose of the waste correctly after use and comply with relevant laws and regulations.
Last Update：2024-04-09 20:52:54
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