Adamantane-1,3-diamine dihydrochloride is primarily utilized in the field of medicinal chemistry and drug development. Its rigid adamantane structure makes it a valuable building block for designing compounds with enhanced stability and specificity. It is often employed in the synthesis of antiviral agents, particularly for targeting influenza and other viral infections, due to its ability to interact with viral proteins effectively. Additionally, it serves as a precursor in the development of pharmaceutical compounds aimed at treating neurological disorders, such as Parkinson’s disease, by acting as a modulator for certain receptors in the brain. Its unique structural properties also make it useful in the creation of advanced materials, such as polymers and coatings, where durability and resistance to degradation are required.