Used as an intermediate in the synthesis of pharmaceuticals, particularly in the development of kinase inhibitors and other bioactive molecules. Its structure supports the construction of compounds with antitumor and anti-inflammatory activities. Commonly employed in medicinal chemistry for modifying pharmacokinetic properties such as solubility and metabolic stability. Also utilized in the preparation of dyes and functional materials where aromatic amines and sulfonamide groups are required for specific electronic or binding characteristics.