1,2,3,4,7,7-Hexachloro-5-(tetrabromophenyl)bicyclo(2.2.1)hept-2-ene 34571-16-9 AI3-27881 Bicyclo(2.2.1)hept-2-ene, 1,2,3,4,7,7-hexachloro-5-(tetrabromophenyl)- EINECS 252-097-6