3-(difluoromethyl)-1-methyl-1H-pyrazole-4-carboxylic acid

3-Difluoromethyl-1-methyl-1H-pyrazole-4-carboxylic acid has a density of 1.307 g/cm³, a boiling point of 288.4 °C, a flash point of 128.2 °C, and a vapor pressure of 0.27 Pa (25 °C). 3-Difluoromethyl-1-methyl-1H-pyrazole-4-carboxylic acid can be used to prepare difluoromethylpyrazole carboxamide compounds, which can be used as succinate dehydrogenase inhibitor fungicides. Succinate dehydrogenase inhibitor fungicides are highly effective fungicides with high activity against a wide range of plant pathogenic fungi. They are used for fungal control in various cultivated plants such as cotton, vegetables, barley, corn, rice, soybeans, wheat, and seeds, and have become a hot topic of development for major pesticide companies in recent years.