alpha-Endosulfan-d4

4-tert-Octylphenol-mono-ethoxylate, 100 µg/ml, Ac

1-(3,4-Dichlorophenyl)urea, 100 µg/ml, Acetonitri

Sodium perfluoro-7-methyloctanesulfonate, 1.2ml x 50ug/ml, methanol