Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of kinase inhibitors and other bioactive molecules. Its structure allows for selective functionalization, making it valuable in medicinal chemistry for constructing heterocyclic systems. Commonly employed in cross-coupling reactions such as Suzuki or Heck reactions to build complex pyridazine derivatives with potential anti-inflammatory, antiviral, or anticancer activity. Also utilized in agrochemical research for designing new active ingredients in crop protection agents.