This compound, S-Benzyl-N-Boc-ethanethiolamine, is a protected derivative of 2-mercaptoethylamine (cysteamine). The Boc (tert-butoxycarbonyl) group protects the primary amine, while the S-benzyl group protects the thiol functionality. It is primarily used in organic synthesis, particularly in the preparation of peptides and other biologically active molecules, serving as a building block where the protections prevent unwanted side reactions. The Boc group offers stability under basic and neutral conditions, suitable for multi-step processes, and can be removed under acidic conditions. The benzyl group allows selective deprotection under mild hydrogenolysis, enabling precise control in synthesis. This specialty chemical is valuable in pharmaceutical research for developing drugs and therapeutic agents by facilitating the construction of complex molecular structures with high specificity.