beta-HCH, 100 µg/ml, Methanol, 1ml

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

2,4,6-Trimethylheptane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 2613-61-8

trans-Permethrin, 100 µg/ml, Acetone, 1ml