| Approval: | ISO |
|---|---|
| IUPAC PIN: | (1aR,2R,2aS,3S,6R,6aR,7S,7aS)-3,4,5,6,9,9-hexachloro-1a,2,2a,3,6,6a,7,7a-octahydro-2,7:3,6-dimethanonaphth[2,3-b]oxirene |
| IUPAC name: | (1R,4S,4aS,5R,6R,7S,8S,8aR)-1,2,3,4,10,10-hexachloro-1,4,4a,5,6,7,8,8a-octahydro-6,7-epoxy-1,4:5,8-dimethanonaphthalene or 1,2,3,4,10,10-hexachloro-6,7-epoxy-1,4,4a,5,6,7,8,8a-octahydro-endo-1,4-exo-5,8-dimethanonaphthalene |
| CAS name: | (1aR,2R,2aS,3S,6R,6aR,7S,7aS)-rel-3,4,5,6,9,9-hexachloro-1a,2,2a,3,6,6a,7,7a-octahydro-2,7:3,6-dimethanonaphth[2,3-b]oxirene |
| CAS Reg. No.: | 60-57-1 |
| Formula: | C12H8Cl6O |
| Activity: | insecticides (chlorinated cyclodiene) |
| Notes: | The common name “HEOD” was also formerly approved by ISO for this substance, but was withdrawn in 2020. The 2aR,3R,6S,6aS isomer has the ISO common name endrin [72-20-8]. The names dieldrin and aldrin are derived from the Diels-Alder chemical reaction, and their pronunciation should reflect the names of the German chemists Dr O. Diels and Dr K. Alder. |
| Structure: |  |
| Pronunciation: | dēl-drǐn Guide to British pronunciation |
| InChIKey: | DFBKLUNHFCTMDC-PICURKEMSA-N |
| InChI: | InChI=1S/C12H8Cl6O/c13-8-9(14)11(16)5-3-1-2(6-7(3)19-6)4(5)10(8,15)12(11,17)18/h2-7H,1H2/t2-,3+,4+,5-,6-,7+,10+,11- |