367-30-6
2,5-二氟苯胺
→
17698-81-6
5,8-difluoro-9H-fluoren-2-amine
17532-94-4
1,4-difluorofluoren-9-one
2265-92-1
1,4-二氟-2-碘代苯
17532-95-5
1,4-difluoro-7-nitrofluoren-9-one