1,3,3a,4,7,7a-Hexahydro-4,5,6,7,8,8-hexachloro-4,7-methanoisobenzofuran 3369-52-6 4,7-Methanoisobenzofuran, 1,3,3a,4,7,7a-hexahydro-4,5,6,7,8,8-hexachloro- 4,7-Methanoisobenzofuran, 4,5,6,7,8,8-hexachloro-1,3,3a,4,7,7a-hexahydro- AI3-29023 BRN 1288889 Endosulfan ether NSC 37660