Nitrofen, 10.0 µg/ml, Cyclohexane, 10ml

1,2,4,7,9-Pentachloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene

N-Nitrosopiperidine, 100µg/ml in MeOH, 5ml

bis(2-Chloroethoxy) methane