2-Amino-5-chloronicotinonitrile is primarily used as an intermediate in the synthesis of various pharmaceuticals. It plays a key role in the production of compounds with potential biological activities, such as antiviral, antibacterial, and anticancer agents. Its structure allows for further chemical modifications, making it valuable in medicinal chemistry for developing new drug candidates. Additionally, it is utilized in research settings to explore novel chemical reactions and pathways, contributing to advancements in organic synthesis.