(1S,2S)-2-(Diphenylphosphino)-2,3-dihydro-1H-inden-1-amine is primarily used as a chiral ligand in asymmetric catalysis. Its application is significant in the synthesis of enantiomerically pure compounds, which are crucial in the pharmaceutical industry for producing drugs with high stereochemical purity. This compound is particularly effective in transition metal-catalyzed reactions, such as hydrogenation, where it helps in achieving high enantioselectivity. Additionally, it is employed in the development of new catalytic systems for organic transformations, contributing to advancements in fine chemical synthesis and material science.