1,2,3,7,7-Hexachloro-5,6-bis(chloromethyl)-2-norbornene 2-Norbornene, 1,2,3,4,7,7-hexachloro-5,6-bis(chloromethyl)- 2550-75-6 AC 12402 Alodan Bicyclo[2.2.1]hept-2-ene, 1,2,3,4,7,7-hexachloro-5,6-bis(chloromethyl)- Chlorbicyclen Cyclodan Hercules 12402 NSC41891 Nodon