Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of kinase inhibitors for cancer treatment. It serves as a building block in medicinal chemistry due to its ability to form substituted heterocyclic compounds with biological activity. Commonly employed in the preparation of antitumor agents and anti-inflammatory drugs. Its chlorine functionality allows for easy coupling reactions, such as Suzuki or Buchwald-Hartwig, enabling rapid diversification in drug discovery programs. Also utilized in agrochemical research for designing novel pesticides with improved efficacy.