2,3,4,4'-Tetrachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

Pyridaben, 10.0 µg/ml, Ethyl acetate, 10ml

Benzo[k]fluoranthene-d12, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-5, Cas.no. 93952-01-3

beta-Endosulfan, 100 µg/ml, Ethyl acetate, 5ml