2,7-Dichlorodibenzo-p-dioxin, 1.2ml x 50ug/ml, nonane

gamma-HCH, 100 µg/ml, Ethyl acetate, 5ml

PCB Congener Mix #2

N-Ethyl-N-(2-hydroxyethyl)nitrosamine,1000 µg/mL,acetonitrile,1mL