(S)-7,7'-bis[di(4-methoxylphenyl)phosphanyl]-2,2',3,3'-tetrahydro-1,1'-spirobi[indene

(S)-7,7'-bis[di(4-methoxylphenyl)phosphanyl]-2,2',3,3'-tetrahydro-1,1'-spirobi[indene · CAS 817176-81-1