Chlorotoluron D6, 100µg/mL in Acetone, 1ml

Demeton-S, 100 µg/ml, Ethyl acetate, 5ml

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

N,N-Dimethylformamide