Used as an intermediate in the synthesis of pharmaceuticals, particularly in the development of cardiovascular drugs and antihypertensive agents. It serves as a building block in the preparation of pyridazine-based compounds that exhibit biological activity, including smooth muscle relaxants and vasodilators. Its chloro and methoxy functional groups allow for further chemical modifications, making it valuable in medicinal chemistry for optimizing drug candidates. Also employed in research settings to explore structure-activity relationships in heterocyclic compounds.