4-环戊烯-1,3-二酮

1,2,4,4-Tetrachlor-3,3,5,5-tetramethoxy-cyclopenten-(1)

1,2,3,3,5,5-Hexachlor-4,4-dimethoxy-cyclopenten-(1)

5,5-二甲氧基-1,2,3,4-四氯环戊二烯

六氯环戊二烯