Used in biochemical research as an intermediate for synthesizing protease inhibitors, particularly targeting serine proteases involved in blood coagulation and inflammatory processes. Commonly employed in the development of antithrombotic agents due to its ability to mimic arginine residues, enhancing binding affinity to enzyme active sites. Also utilized in medicinal chemistry for constructing small-molecule inhibitors with improved solubility and bioavailability. Serves as a building block in peptide-based drug design where amidine functionality is required for biological activity.