Used as a synthetic double-stranded RNA analog in immunological research to stimulate interferon production. Activates pattern recognition receptors such as Toll-like receptor 3 (TLR3) and MDA5, making it valuable for studying innate immune responses. Commonly employed in cell culture experiments to mimic viral infection and assess antiviral defense mechanisms. Also used as an adjuvant in vaccine development to enhance immune activation. Stable and easily delivered into cells, it serves as a tool for probing RNA sensing pathways and regulating immune signaling in experimental models.