FPR Agonist 43 is primarily utilized in research settings to study inflammatory responses and immune system modulation. It acts as a potent agonist for formyl peptide receptors (FPRs), which play a critical role in detecting pathogen-associated molecular patterns (PAMPs) and damage-associated molecular patterns (DAMPs). This compound is often employed in experiments to investigate neutrophil chemotaxis, a process where immune cells migrate toward sites of infection or injury. Additionally, it is used to explore the mechanisms underlying chronic inflammatory diseases, such as rheumatoid arthritis and atherosclerosis, by mimicking the activation of FPRs. Its application extends to drug discovery, where it serves as a tool to screen and develop potential therapeutic agents targeting inflammatory pathways.