3,4,5-Tribromo-1H-pyrazole(CAS: 17635-44-8)

3,4,5-Tribromo-1H-pyrazole (CAS: 17635-44-8) is a crystalline solid with a high melting point and molecular weight of 291.06 g/mol. It is poorly soluble in water but soluble in common organic solvents like ethanol and acetone. Chemically, it is highly reactive due to the presence of bromine atoms, which can undergo substitution reactions under certain conditions.

3,4,5-Tribromo-1H-pyrazole is typically synthesized via bromination of pyrazole using bromine in the presence of a Lewis acid catalyst like aluminum bromide. The reaction is carried out in a solvent such as dichloromethane, and the product is obtained with good yield and good selectivity.

3,4,5-Tribromo-1H-pyrazole (CAS: 17635-44-8) is used in the pharmaceutical industry for the synthesis of intermediates and active pharmaceutical ingredients. It is also used in the polymer industry for flame retardant applications and in the semiconductor industry for its unique electronic properties.

When handling 3,4,5-Tribromo-1H-pyrazole (CAS: 17635-44-8), appropriate personal protective equipment (PPE) such as gloves, goggles, and a lab coat should be worn. It should be handled in a well-ventilated area or a fume hood due to its reactivity. Spills should be cleaned up using appropriate absorbent materials and disposed of according to local regulations. Always refer to the Material Safety Data Sheet (MSDS) for detailed safety information.