label: 1 alpha,2 beta,4 beta,5,6,7 beta,8,8-octachloro-2,3 alpha-epoxy-3a alpha,4,7,7a alpha-tetrahydro-4,7-methanoindan
label_lc: 1 alpha,2 beta,4 beta,5,6,7 beta,8,8-octachloro-2,3 alpha-epoxy-3a alpha,4,7,7a alpha-tetrahydro-4,7-methanoindan