英文同义词: | Pyridine, 4,4'-(2,3,5,6-tetrafluoro-1,4-phenylene)bis-;4,4'-(perfluoro-1,4-phenylene)dipyridine;4-(2,3,5,6-tetrafluoro-4-pyridin-4-ylphenyl)pyridine;1,4-Bis (4-pyridyl) tetrafluorobenzene;4,4'-(perfluoro-1,4-phenylene)dipyridine;Pyridine, 4,4'-(2,3,5,6-tetrafluoro-1,4-phenylene)bis- |