1,4,5,6-Tetrachloro-bicyclo(2.2.1)hept-5-ene-2,3-carboxamide 116761-95-6 4,5,6,7-Tetrachloro-3a,4,7,7a-tetrahydro-4,7-methano-1H-isoindole-1,3(2H)-dione 4,7-Methano-1H-isoindole-1,3(2H)-dione, 4,5,6,7-tetrachloro-3a,4,7,7a-tetrahydro-