英文别名1,1'-(9,9-dimethyl-9H-xanthene-4,5-diyl)bis-1,1-diphenylphosphine oxide; Phosphine oxide, 1,1'-(9,9-dimethyl-9H-xanthene-4,5-diyl)bis[1,1-diphenyl-; (9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(diphenylphosphine) dioxide; 4,5-Bis(diphenylphosphoroso)-9,9-dimethyl-9h-xanthene; 4,5-Bis(diphenylphosphoryl)-9,9-dimethylxanthene 
