Used as a key intermediate in the synthesis of agrochemicals and pharmaceuticals, particularly in the development of herbicides and fungicides. Its sulfonyl chloride group readily reacts with amines and alcohols, making it valuable for introducing the 1-ethylpyrazole moiety into larger molecules. This compound is especially useful in creating active ingredients that target specific enzymes in pests or pathogens, enhancing selectivity and efficacy. It also finds use in research settings for building complex heterocyclic systems in drug discovery programs.