2,3,5,6-tetrachloro-trans-3',4'-diphenylspiro[2,5-cyclohexadiene-1,2'-oxetan]-4-one

对醌4-氯酰亚氨

2-碘苯酚

4-Chloro-N-[2,3,5,5,6,6-hexachloro-4-oxo-cyclohex-2-en-(Z)-ylidene]-benzenesulfonamide

N,N'-(perchlorocyclohex-2-ene-1,4-diylidene)bis(4-chlorobenzenesulfonamide)