1-(2,3-Dichlorophenyl)urea

2,3,6,7-Tetrachloro[13C12]biphenylene, 1.2ml x 50ug/ml, nonane

D10-Malathion, 100 µg/ml, Acetone, 1ml

2-Hydroxy-2',3',5,5',6'-pentachlorobiphenyl, 10mg