Used in research as a potent and selective inhibitor of protein arginine deiminase 4 (PAD4), an enzyme implicated in autoimmune diseases such as rheumatoid arthritis. It helps modulate citrullination processes, making it valuable in studying the role of PAD4 in inflammation and neutrophil extracellular trap (NET) formation. Due to its selectivity, it is employed in cellular and biochemical assays to probe PAD4-related pathways without significant off-target effects. Also serves as a lead compound in developing potential therapeutics targeting epigenetic and inflammatory disorders.