Pyrazole-3-Carbaldehyde
Pyrazole-3-Carbaldehyde
CAS: 3920-50-1
Molecular Formula: C4H4N2O
Pyrazole-3-Carbaldehyde - Names and Identifiers
Pyrazole-3-Carbaldehyde - Physico-chemical Properties
| Molecular Formula | C4H4N2O |
| Molar Mass | 96.09 |
| Density | 1.323 |
| Melting Point | 149.0 to 153.0 °C |
| Boling Point | 300.0±13.0 °C(Predicted) |
| Flash Point | 139.672°C |
| Vapor Presure | 0.001mmHg at 25°C |
| Appearance | Bright yellow solid |
| Color | White to Orange to Green |
| pKa | 11.20±0.10(Predicted) |
| Storage Condition | Inert atmosphere,Room Temperature |
| Refractive Index | 1.62 |
| MDL | MFCD00129925 |
Pyrazole-3-Carbaldehyde - Risk and Safety
| Risk Codes | R22 - Harmful if swallowed R37/38 - Irritating to respiratory system and skin. R41 - Risk of serious damage to eyes |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/39 - |
| WGK Germany | 3 |
| Hazard Class | IRRITANT |
Pyrazole-3-Carbaldehyde - Introduction
Pyrazole-3-Carbaldehyde (Pyrazole-3-Carbaldehyde) is an organic compound with the chemical formula C4H4N2O. It has the appearance of a pale yellow solid.
In terms of properties, Pyrazole-3-Carbaldehyde is unstable at room temperature, and a polymerization reaction easily occurs. It has a certain solubility in solvents and can be dissolved in polar solvents such as acetonitrile and dimethyl sulfoxide. When exposed to air, it is easy to oxidize.
In terms of application, Pyrazole-3-Carbaldehyde is an important intermediate compound and has a wide range of applications in pharmaceutical synthesis and organic synthesis. It can be used to synthesize biologically active compounds, such as anti-tumor drugs, antibacterial drugs and pesticides.
In the preparation method, the Pyrazole-3-Carbaldehyde can be prepared by the oxidation reaction of 1H-pyrazole-3-carboxylic acid. A specific procedure involves reacting 1H-pyrazole-3-carboxylic acid with an oxidizing agent such as sodium hypochlorite or chlorine dioxide to give the desired product.
Regarding safety information, the toxicity of Pyrazole-3-Carbaldehyde is low, but it is still necessary to pay strict attention to safe operation. Avoid contact with skin and eyes during use. In case of accidental contact, rinse immediately with plenty of water. At the same time, to avoid inhaling its vapor, it is best to operate in a well-ventilated area.
In terms of properties, Pyrazole-3-Carbaldehyde is unstable at room temperature, and a polymerization reaction easily occurs. It has a certain solubility in solvents and can be dissolved in polar solvents such as acetonitrile and dimethyl sulfoxide. When exposed to air, it is easy to oxidize.
In terms of application, Pyrazole-3-Carbaldehyde is an important intermediate compound and has a wide range of applications in pharmaceutical synthesis and organic synthesis. It can be used to synthesize biologically active compounds, such as anti-tumor drugs, antibacterial drugs and pesticides.
In the preparation method, the Pyrazole-3-Carbaldehyde can be prepared by the oxidation reaction of 1H-pyrazole-3-carboxylic acid. A specific procedure involves reacting 1H-pyrazole-3-carboxylic acid with an oxidizing agent such as sodium hypochlorite or chlorine dioxide to give the desired product.
Regarding safety information, the toxicity of Pyrazole-3-Carbaldehyde is low, but it is still necessary to pay strict attention to safe operation. Avoid contact with skin and eyes during use. In case of accidental contact, rinse immediately with plenty of water. At the same time, to avoid inhaling its vapor, it is best to operate in a well-ventilated area.
Last Update：2024-04-10 22:30:50
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