4,7-二甲基-1H-茚

1,2,4,5-四氟-3,6-(三氟甲基)苯

1,4-bis(difluoromethyl)-2,3,5,6-tetrafluorobenzene

1-trifluoromethyl-4-difluoromethyl-2,3,5,6-tetrafluorobenzene

2,5-二甲基苯甲醛