Synonyms: 5-Norbornene-2,3-dicarboxylicacid, 1,4,5,6,7,7-hexachloro-,bis[(1,4,5,6,7,7-hexachloro-5-norbornen-2-yl)methyl] ester (8CI);Bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid, 1,4,5,6,7,7-hexachloro-,bis[(1,4,5,6,7,7-hexachlorobicyclo[2.2.1]hept-5-en-2-yl)methyl] ester (9CI);5-Norbornene-2-methanol, 1,4,5,6,7,7-hexachloro-,1,4,5,6,7,7-hexachloro-5-norbornene-2,3-dicarboxylate (2:1) (8CI); NSC 22234