tert-Butyl (12-aminododecyl)carbamate is a Boc-protected long-chain diamine used primarily as a building block in organic synthesis for peptides, polyamides, polyureas, and other bioactive molecules or functional materials. It acts as a protective group for one amine, enabling selective reactions at the free amine terminus without side reactions. This compound is essential in pharmaceutical research for developing drug candidates and delivery systems, as well as in material science for creating functionalized polymers, surfaces, and coatings that enhance strength, durability, and specific properties. Its stability under reaction conditions and facile removal via mild deprotection make it a versatile reagent in biotechnology and advanced materials development.