3-Amino-6-chloropyrazine-2-carboxamide is a specialty chemical intermediate primarily used in the pharmaceutical industry for the synthesis of antiviral drugs, such as Favipiravir, which targets influenza and other viral infections. It serves as a building block in medicinal chemistry for developing pyrazine-based compounds with potential applications in treating infectious diseases. Additionally, it is employed in research to create derivatives with enhanced biological activities, contributing to advancements in antiviral and antimicrobial therapies.