alpha-Endosulfan, 100mg

2-Chloro[13C12]biphenyl, 50.0µg/mL in Nonane/5% toluene, 1,2ml

4-Nonylphenol-mono-ethoxylate, 10µg/ml in Acetone, 1ml

Chlorfenvinphos, 10.0 µg/ml, Ethyl acetate, 10ml