"(11BR)-2,6-BIS[4-(TERT-BUTYL)PHENYL]-8,9,10,11,12,13,14,15-OCTAHYDRO-4-HYDROXY-4-OXIDE-DINAPHTHO[2,1-D:1',2'-F][1,3,2]DIOXAPHOSP"
"(11BR)-2,6-BIS[4-(TERT-BUTYL)PHENYL]-8,9,10,11,12,13,14,15-OCTAHYDRO-4-HYDROXY-4-OXIDE-DINAPHTHO[2,1-D:1',2'-F][1,3,2]DIOXAPHOSP"