3868-61-9 3a,4,7,7a-Tetrahydro-4,5,6,7,8,8-hexachloro-4,7-methanoisobenzofuran-1(3H)-one 4,7-Methanoisobenzofuran-1(3H)-one, 3a,4,7,7a-tetrahydro-4,5,6,7,8,8-hexachloro- 5-Norbornene-2-carboxylc acid, 1,4,5,6,7,7-hexachloro-3-(hydroxymethyl)-, gamma-lactone BRN 1322148 Endolacton Endosulfan lacton