Used as an intermediate in the synthesis of pharmaceuticals, particularly in the development of sulfonamide-based drugs. It serves as a building block in organic reactions where a nitroaromatic thioether functionality is required. Its structure allows for further modification through reduction of the nitro group or esterification of the carboxylic acid, enabling incorporation into more complex molecules. Also applied in the preparation of biologically active compounds, including antimicrobial and anti-inflammatory agents.