1,3,3a,4,7,7a-Hexahydro-4,5,6,7,8,8-hexachloro-4,7-methanoisobenzofuran-1-ol 1-alpha-Hydroxyendosulfan ether 1021-19-8 4,7-Methanoisobenzofuran-1-ol, 1,3,3a,4,7,7a-hexahydro-4,5,6,7,8,8-hexachloro- Endosulfan alpha-hydroxy ether Endosulfan hydroxyether