Used primarily as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of sulfonamide-based drugs. It serves as a building block for bioactive molecules due to the presence of both aniline and pyrrolidine sulfonate groups, which can enhance binding affinity and solubility in drug candidates. Commonly employed in medicinal chemistry for designing enzyme inhibitors and receptor modulators. Also utilized in the preparation of agrochemicals and functional dyes where aromatic amines with polar substituents are required.