6-Chloro-3(2H)-pyridazinone, >98%, 25g

O,O-Diethylthiophosphate-13C2, sodium salt, 100µg/ml in MeOH, 1ml

PCB-Mix 3, 100 ng/µl, 10ml

2,4,6-Trinitrotoluene, 100 µg/ml, Acetonitrile,