Dinactin is a natural substance belonging to the macrolide antibiotic group, exhibiting antimicrobial activity against certain microorganisms, particularly bacteria and fungi. It is primarily used in biochemical and microbiological research as a potassium ionophore, facilitating the transport of potassium ions across cell membranes. This property makes it a valuable tool for studying cellular processes involving potassium ion movement, such as membrane potential regulation and signal transduction. Additionally, Dinactin is employed in experiments to investigate the effects of ion transport on cellular functions, explore ionophore mechanisms in biological systems, and understand bacterial resistance mechanisms related to ion transport.