Used as a key intermediate in the synthesis of pharmaceuticals, serving as a building block in heterocyclic chemistry for the development of bioactive molecules with potential antimicrobial, anti-inflammatory, and other therapeutic properties. Its structure enables the design of compounds targeting enzyme inhibition and receptor modulation in medicinal chemistry. Unlike the 3-isomer used in sulfonamide antibiotics like sulfamethoxazole, the 4-amine variant is applied in diverse synthetic pathways for novel drug candidates. Also employed in agrochemicals for the development of crop protection agents, leveraging its reactivity and stability.