Used as a key intermediate in organic synthesis, particularly in the preparation of guanidine derivatives and heterocyclic compounds. It serves as a protected form of thiourea, allowing selective reactions in multi-step syntheses without interference from reactive functional groups. Commonly employed in pharmaceutical development for building nitrogen-containing scaffolds. Also utilized in the synthesis of agrochemicals and functional materials where controlled release of thiourea moiety is required. Its Boc-protected groups enhance solubility and stability in various reaction conditions, making it suitable for use in peptide chemistry and combinatorial library design.