2-Amino-5-bromoisonicotinonitrile is primarily used as a key intermediate in the synthesis of various pharmaceutical compounds. Its structure, featuring both amino and nitrile functional groups, makes it valuable in the development of heterocyclic compounds, which are often found in drugs targeting a range of diseases. Specifically, it is utilized in the preparation of molecules with potential biological activities, such as anticancer, antiviral, and anti-inflammatory agents. Additionally, it serves as a building block in organic chemistry research for the creation of complex molecules, contributing to advancements in medicinal chemistry and drug discovery.