4344-87-0
3-methyl-3-pyrazolin-5-one
CAS: 4344-87-0
Molecular Formula: C4H6N2O
4344-87-0 - Names and Identifiers
4344-87-0 - Physico-chemical Properties
| Molecular Formula | C4H6N2O |
| Molar Mass | 98.1 |
| Density | 1.107±0.06 g/cm3(Predicted) |
| Melting Point | 223-225 °C (lit.) |
| Solubility | 1 M NH4OH: soluble25mg/mL, clear, colorless (in methanol) |
| Appearance | White powder |
| pKa | 9.04±0.70(Predicted) |
| Storage Condition | Keep in dark place,Inert atmosphere,Room temperature |
4344-87-0 - 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 S36 - Wear suitable protective clothing. |
| WGK Germany | 3 |
4344-87-0 - Introduction
3-methyl-3-pyrazolin-5-one, also known as 3-methyl-3-pyrazolin-5-one, is an organic compound with the formula C5H6N2O.
Nature:
3-methyl-3-pyrazolin-5-one is a colorless crystalline or white solid with a special aroma. Its melting point is 128-130 degrees Celsius. It is insoluble in water, but soluble in organic solvents such as ethanol and dimethylformamide.
Use:
3-methyl-3-pyrazolin-5-one can be used as a reducing agent and oxidizing agent in chemical laboratories. It can also be used as an intermediate in organic synthesis, participating in various organic reactions, such as carbonyl compounds and electrophilic addition reactions. In addition, it is also widely used in the fields of synthetic drugs, dyes and pesticides.
Preparation Method:
3-methyl-3-pyrazolin-5-one can be prepared by reacting pyrazolin-5-one with a methylating agent such as methyl magnesium bromide. Specific steps can refer to organic synthesis experimental teaching materials or professional literature.
Safety Information:
3-methyl-3-pyrazolin-5-one has not been found to have obvious toxicity and harm to human health. However, as a chemical substance, it still needs to be used safely during operation. Contact with skin and eyes should be avoided, such as accidental contact with skin, should immediately rinse with water. At the same time, proper ventilation conditions should be ensured during operation. Detailed safety information and methods of operation can be found in the Chemical Safety Data Sheet (MSDS) or relevant safety guidelines.
Nature:
3-methyl-3-pyrazolin-5-one is a colorless crystalline or white solid with a special aroma. Its melting point is 128-130 degrees Celsius. It is insoluble in water, but soluble in organic solvents such as ethanol and dimethylformamide.
Use:
3-methyl-3-pyrazolin-5-one can be used as a reducing agent and oxidizing agent in chemical laboratories. It can also be used as an intermediate in organic synthesis, participating in various organic reactions, such as carbonyl compounds and electrophilic addition reactions. In addition, it is also widely used in the fields of synthetic drugs, dyes and pesticides.
Preparation Method:
3-methyl-3-pyrazolin-5-one can be prepared by reacting pyrazolin-5-one with a methylating agent such as methyl magnesium bromide. Specific steps can refer to organic synthesis experimental teaching materials or professional literature.
Safety Information:
3-methyl-3-pyrazolin-5-one has not been found to have obvious toxicity and harm to human health. However, as a chemical substance, it still needs to be used safely during operation. Contact with skin and eyes should be avoided, such as accidental contact with skin, should immediately rinse with water. At the same time, proper ventilation conditions should be ensured during operation. Detailed safety information and methods of operation can be found in the Chemical Safety Data Sheet (MSDS) or relevant safety guidelines.
Last Update：2024-04-09 21:11:58
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