DIELDRIN

Formerly a pesticide for crops like corn and cotton, based on 1,2,3,4,10,10-hexachloro-6,7-epoxy-1,4,4a,5,6,7,8,8a-octahydro,endo,exo-1,4:5,8-dimethanonaphthalene. It is now classified as a POP. Under the Stockholm Convention on Persistent Organic Pollutants, use of this chemical in Europe is subject to restriction.