3-Nitro-1h-pyrazolo[3,4-b]pyridin - Names and Identifiers
3-Nitro-1h-pyrazolo[3,4-b]pyridin - Physico-chemical Properties
Molecular Formula | C6H4N4O2
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Molar Mass | 164.12 |
Density | 1.79±0.1 g/cm3(Predicted) |
Melting Point | 263-264℃ (ethanol ) |
Boling Point | 363.5±25.0 °C(Predicted) |
pKa | -0.02±0.20(Predicted) |
Storage Condition | 2-8°C |
3-Nitro-1h-pyrazolo[3,4-b]pyridin - Risk and Safety
Risk Codes | 20/21/22 - Harmful by inhalation, in contact with skin and if swallowed.
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Safety Description | 36/37 - Wear suitable protective clothing and gloves.
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HS Code | 29331990 |
3-Nitro-1h-pyrazolo[3,4-b]pyridin - Introduction
3-Nitro-1H-pyrazolo [3,4-b] pyridine is an organic compound with the chemical formula C9H5N3O2. The following is a description of its nature, use, preparation and safety information:
Nature:
3-Nitro-1H-pyrazolo [3,4-b] pyridine is a yellow to yellow-green crystalline solid. It is soluble in organic solvents such as ethanol, dimethylformamide and chloroform, and insoluble in water. It has high thermal and chemical stability.
Use:
3-Nitro-1H-pyrazolo [3,4-b] pyridine is commonly used as an intermediate in organic synthesis. It can be used to synthesize physiologically active compounds, such as drugs, pesticides and dyes. It can also be used as a component of explosives and propellants because of its high energy density and detonation velocity.
Preparation Method:
3-Nitro-1H-pyrazolo [3,4-b] pyridine is prepared by a variety of methods, common methods include:
1. the reaction of 2-nitropyridine and pyrophosphoric acid.
2. Reaction of 3-nitro-1H-pyrazole with α-bromoketone.
3. Reaction of 3-nitro-1H-pyrazole with maleic anhydride.
Safety Information:
3-Nitro-1H-pyrazolo [3,4-b] pyridine may thermally decompose under humid conditions and may produce toxic gases. It is a potential carcinogen, please take appropriate protective measures to avoid inhalation or contact with skin. Adequate ventilation shall be provided in the working environment. Care should be taken to avoid contact with strong oxidants, acids and flammable substances during use or storage. In case of accident or discomfort, seek medical help immediately.
Last Update:2024-04-09 15:17:51