20687-94-9
4,5,6,7-tetrachloro-1,1,3,3-tetrafluoro-2-benzofuran
→
~93%
122180-11-4
1,1,3,3,4,5,6,7-八氟-1,3-二氢异苯并呋喃
652-03-9
3,4,5,6-四氟邻苯二甲酸