N-(tert-Butoxycarbonyl)-2,2'-(ethylenedioxy)diethylamine is a selectively protected diamine derivative used as a building block in organic synthesis, particularly in peptide chemistry and pharmaceutical manufacturing. The Boc (tert-butoxycarbonyl) group protects one amine, enabling selective functionalization of the free amine and preventing side reactions during multi-step assembly of complex molecules. Its stability across diverse conditions supports applications in bioactive molecule synthesis, drug delivery systems, and polymer chemistry.