Used primarily as an intermediate in organic synthesis, especially in the production of agrochemicals and pharmaceuticals. It serves as a building block for sulfonamide-based compounds, which are important in the development of herbicides, fungicides, and certain active pharmaceutical ingredients. Its isocyanate group readily reacts with amines and alcohols, making it valuable for constructing complex molecules through urea or carbamate linkages. It is also employed in the preparation of specialty polymers and crosslinking agents where thermal stability and reactivity are required. Due to its reactivity, it is handled under controlled conditions in industrial and laboratory settings.