Used as a chiral auxiliary in asymmetric synthesis, particularly in enantioselective carbon-carbon bond-forming reactions. Its rigid indane backbone and sulfinamide group enable high stereocontrol, making it valuable in the preparation of optically active intermediates for pharmaceuticals. The compound facilitates efficient enantioselective transformations due to its ability to coordinate with metal catalysts and stabilize transition states. Commonly employed in the synthesis of complex molecules where precise stereochemistry is critical, such as in active pharmaceutical ingredients (APIs) requiring single-enantiomer configurations.