Used as an intermediate in the synthesis of pharmaceuticals, particularly in the development of kinase inhibitors for cancer treatment. It serves as a building block in the preparation of active pharmaceutical ingredients (APIs) due to its reactive chloro and aryl groups, which allow for further functionalization through cross-coupling reactions. Commonly employed in medicinal chemistry for structure-activity relationship (SAR) studies to optimize drug candidates targeting inflammatory diseases and oncology. Also utilized in agrochemical research for designing novel pesticides with improved efficacy and selectivity.