Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of nitrogen-containing heterocyclic drugs. It serves as a building block for pyridazinone derivatives, which exhibit biological activities such as antihypertensive, anti-inflammatory, and antimicrobial effects. Commonly employed in medicinal chemistry research for structure-activity relationship studies and in the design of enzyme inhibitors. Also utilized in the preparation of functionalized pyridazine compounds for use in agrochemicals and dyes.