1,4,5,6,7,7-Hexachloro-5-norbornene-2,3-dicarboximide 1,4,5,6,7,7-Hexachlorobicyclo(2.2.1)heptene-2,3-dicarboximide 4,7-Methano-1H-isoindole-1,3(2H)-dione, 4,5,6,7,8,8-hexachloro-3a,4,7,7a-tetrahydro- (9CI) 5-Norbornene-2,3-dicarboximide, 1,4,5,6,7,7-hexachloro- 6889-41-4 Chlorendic imide NSC 22222