4,4'-DDD, 100 µg/ml, Toluene, 5ml

3,4-Dichloronitrobenzene, 10 µg/ml, Methanol, 10

1,2,3,6,7,8-Hexachloro[13C12]dibenzofuran, 1.2ml x 50ug/ml, toluene

2,2',3,4,4',5-Hexachlorobiphenyl (137)