Ethyl 6-aminopyridazine-3-carboxylate is primarily used as a key intermediate in the synthesis of various pharmaceutical compounds. It plays a significant role in the development of drugs targeting cardiovascular diseases, due to its structural properties that allow it to interact effectively with biological targets. Additionally, it is utilized in the creation of agrochemicals, where it contributes to the formulation of pesticides and herbicides that help in protecting crops from pests and diseases. Its versatility in chemical reactions also makes it valuable in research and development for discovering new therapeutic agents and improving existing ones.