3,8-Diazabicyclo[3.2.1]octane dihydrochloride is primarily utilized in the field of organic synthesis and pharmaceutical research. It serves as a key intermediate in the development of various bioactive compounds, particularly those targeting neurological and cardiovascular systems. Its bicyclic structure makes it a valuable scaffold for designing molecules with specific receptor-binding properties. Additionally, it is employed in the synthesis of complex heterocyclic compounds, which are often explored for their potential therapeutic applications. Researchers also use it in studying enzyme inhibition and as a building block for creating novel drug candidates.