1-Chloro-2,4-dinitrobenzene, 1000µg/ml in MeOH, 1ml

2,4'-DDE, 10.0 µg/ml, Ethyl acetate, 10ml

1-(4-Chlorophenyl)urea, 100 µg/ml, Acetonitrile,

2,2',4,4',5-Pentabromo[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane