英文同义词: | 7- bromo- 9, 9, 9', 9'- tetramethyl-2, 2'- Bi- 9H- fluorene;7-bromo-9,9,9',9'-tetramethyl-9H,9'H-2,2'-bifluorene;7-bromo-9,9,9',9'-tetramethyl-9H-2,2'bifluorene;2,2'-Bi-9H-fluorene, 7-bromo-9,9,9',9'-tetramethyl-;7- bromo- 9, 9, 9', 9'- tetramethyl-2, 2'- Bi- 9H- fluorene |