Used as a chiral resolving agent in the separation of enantiomers, particularly in the pharmaceutical industry. Its rigid triphenyl structure and stereogenic center make it effective for forming diastereomeric salts with racemic mixtures of acidic compounds, enabling the isolation of optically pure enantiomers. Commonly applied in the resolution of chiral carboxylic acids and in asymmetric synthesis where high enantioselectivity is required. Also serves as a building block in the synthesis of chiral ligands and catalysts for enantioselective transformations.