21003-45-2
Octachlor-tricyclo(4.2.0.02.5)-octadien-(3.7)
→
24648-09-7
1,2,3,4,5,6,7,8-octachlorocycloocta-1,3,5,7-tetraene
34973-71-2
Perchlor-bicyclo[4.2.0]octatrien-(1.5.7)