1H-Pyrazole, 4-phenyl- - Names and Identifiers
1H-Pyrazole, 4-phenyl- - Physico-chemical Properties
Molecular Formula | C9H8N2
|
Molar Mass | 144.17 |
Density | 1.141 |
Melting Point | 230-231℃ |
Boling Point | 340.9±21.0 °C(Predicted) |
Flash Point | 165°C |
Vapor Presure | 0.000165mmHg at 25°C |
pKa | 13.94±0.50(Predicted) |
Storage Condition | Sealed in dry,Room Temperature |
Refractive Index | 1.602 |
1H-Pyrazole, 4-phenyl- - Introduction
4-Phenylpyrazole is an organic compound with the chemical formula C11H8N2. It has the morphology of pale yellow crystals.
Nature:
1. Melting point: about 112-114°C.
2. Solubility: 4-phenylpyrazole is difficult to dissolve in water, but it is easy to dissolve in most organic solvents, such as ethanol and dimethylformamide.
3. Stability: It has high stability and is not easy to decompose or chemically react.
Use:
1. 4-Phenylpyrazole can be used as an intermediate in organic synthesis, which is widely used in the fields of medicine, dyes and pesticides.
2. In drug development, it is often used as a raw material for antioxidants, antibacterial drugs and anti-tumor drugs.
3. As a dye intermediate, it can be used to synthesize organic pigments and dyes.
4. 4-phenylpyrazole can also be used for synthetic pesticides, killing a variety of pests.
Preparation Method:
Common preparation methods include:
1.4-phenyl pyrazole was obtained by the reaction of aniline and malononitrile under acidic conditions.
2. Benzoic acid and cyclohexylamine are condensed in the presence of alkyl halides under alkaline conditions to produce 4-phenylpyrazole.
Safety Information:
1. 4-Phenylpyrazole may cause irritation to skin, eyes and respiratory system. Avoid direct contact.
2. Wear protective gloves, goggles and protective clothing during use.
3. avoid inhalation of its dust or steam, maintain good ventilation.
4. Storage should avoid contact with the oxidant, placed in a dry, cool place.
Last Update:2024-04-09 02:00:40