Used as a potent and selective inhibitor of lysine-specific demethylase 1 (LSD1), RS 8359 is primarily applied in epigenetic research to study gene expression regulation. It helps modulate the demethylation of histone proteins, particularly H3K4me2, making it a valuable tool in investigating cancer cell proliferation and differentiation. Due to its ability to reactivate silenced tumor suppressor genes, it is explored in preclinical studies for oncology, especially in leukemia and small cell lung cancer models. Additionally, RS 8359 supports research into cellular differentiation and stem cell biology by influencing epigenetic pathways.