Neuraminidase-IN-1 is primarily used as a potent inhibitor of neuraminidase enzymes, which play a critical role in the replication of influenza viruses. By blocking neuraminidase activity, it prevents the release of newly formed viral particles from infected host cells, thereby limiting the spread of the virus within the respiratory tract. This makes it a valuable candidate in antiviral drug development, especially for treating influenza infections. It has shown efficacy in cellular assays against multiple strains of influenza, including those resistant to other antiviral agents. Additionally, Neuraminidase-IN-1 serves as a research tool in virology to study viral entry and release mechanisms, supporting the design of next-generation antivirals.