MARK-IN-4 is used in scientific research to study and analyze intracellular biochemical mechanisms, particularly in cellular signaling processes and intercellular communication. Furthermore, it is applied in the development of drugs and pharmaceutical compounds for treating various diseases, such as cancer and neurological disorders, due to its effective properties in inhibiting or stimulating specific molecular targets. Additionally, it serves as a crucial tool in laboratories for understanding the molecular-level mechanisms of protein and enzyme functions.