1-chloro-4-[(2,3,4,5-tetrachlorocyclopenta-2,4-dien-1-ylidene)methyl]benzene

5,6,7,8,9,9-hexachloro-1,2,3,4,4a,5,8,8a-octahydro-1,4:5,8-dimethanonaphthalene

环戊烷

1,1,1,4,4,5,5,5-octafluoropent-2-yne

1,2-二氯六氟环戊烯