SAR405 is primarily utilized in research settings as a selective inhibitor of PIKfyve, a lipid kinase involved in various cellular processes. Its application is significant in studying autophagy, endosomal trafficking, and lysosomal function. Researchers use SAR405 to investigate the role of PIKfyve in diseases such as cancer, neurodegenerative disorders, and viral infections. By inhibiting PIKfyve, SAR405 helps in understanding the molecular mechanisms underlying these conditions, potentially leading to the development of targeted therapies. Additionally, it is employed in preclinical studies to explore its efficacy in modulating cellular pathways associated with inflammation and immune responses.