This specialty chemical is a chiral phosphorus-based compound primarily utilized as a ligand in asymmetric catalysis for advanced organic synthesis and pharmaceutical research. It serves as a key reagent in the enantioselective construction of complex molecules with potential therapeutic applications. Its unique diindeno-fused structure enables high levels of stereocontrol in reactions such as allylations and hydroformylations, facilitating the synthesis of chiral intermediates essential for designing drugs with specific biological activities. Additionally, it contributes to innovations in material science through catalyzed formation of enantiopure polymers or functional materials.