Used as an intermediate in the synthesis of biologically active compounds, particularly in the development of sulfonamide-based pharmaceuticals with potential antimicrobial and anti-inflammatory properties. Its structure allows for further functionalization, making it valuable in medicinal chemistry research for designing enzyme inhibitors. Also employed in dye synthesis due to the presence of naphthalene and nitro groups, contributing to chromophoric properties. Serves as a reagent in organic transformations where sulfonamides act as directing groups or protecting moieties.