1,4:5,8-Dimethanonaphthalen-2-ol, 5,6,7,8,9,9-hexachloro-1 ,2,3,4,4a,5,8,8a-octahydro-, (1alpha,2alpha,4alpha,4abeta,5lpha,8alpha,8abeta)- 10059-66-2 NSC 122964