Pentachlorobenzene, 100 µg/ml, Cyclohexane, 1ml

1,2,3,4-Tetrachlorobenzene, 1000µg/mL in Isooctane, 1ml

Ethanol standard in serum,0.8g/L,serum, 1.5mL

17beta-Ethynylestradiol,neat,neat,1mg,