1,2,3,4,10,10-hexachloro-1,4,4a,5,8,8a-hexahydro-endo-1,4,-exo-5,8- dimethanonaphthalene; 1,2,3,4,10,10-hexachloro-1,4,4a,5,8,8a-hexahydro-exo-1,4-endo-5,8- dimethanonaphthalene; 1,2,3,4,10,10-hexachloro-1,4,4a,8,8a-hexahydro-endo, exo-1,4:5,8-dimethanonaphthalene; 1,2,3,4,10,10-hexachloro-l,4,4a,5,8,8a-hexahydro-1,4-endo-exo-5,8- dimethanonaphthalene; Compound 118; Ent 15, 949; Hexachlorohexahydro-endo-exo-dimethanonaphthalene; Hhdn.