3,5-Dibromo-1H-pyrazole is an organic compound with the chemical formula C3H2Br2N2. It is a colorless solid with a special odor at room temperature. The following is a specific description of its nature, use, preparation and safety information:
Nature:
-Appearance: 3,5-dibromo-1H-pyrazole is a colorless crystal or a white crystalline powder.
-Solubility: It is insoluble in water, but soluble in organic solvents such as alcohols and ethers.
-melting point: its melting point range of 118-121 ℃.
Use:
-3,5-dibromo-1H-pyrazole is an important intermediate for the synthesis of other organic compounds. It can be used to synthesize chemicals such as pesticides, dyes and pharmaceuticals.
-It can also be used as a catalyst and catalyst carrier.
Preparation Method:
-3,5-dibromo-1H-pyrazole is usually prepared by reacting pyrazole with bromine. A common synthetic method is to place the pyrazole in a solvent in which bromine is dissolved. After a period of reaction, the product is purified by crystallization.
Safety Information:
-Since 3,5-dibromo-1H-pyrazole is a toxic substance, use should follow appropriate operating procedures and wear appropriate protective equipment.
-It is irritating to the skin and eyes, and should be rinsed with water immediately after contact.
-in storage and handling, should be away from the fire and high temperature environment.
-When using, care should be taken to avoid inhaling its dust or vapor, and avoid ingestion or swallowing.
-For safety reasons, it is recommended to use this compound in a specially ventilated laboratory environment.