Heptachlor, 100 µg/ml, Acetonitrile, 1ml

Ethanol in serum control EtOH SE (3.0g/L), 10x3ml

n-Heneicosane, ?13C: -28.59, 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-5, Cas.no. 629-94-7

Benzo[b]picene, neat, Solvent-neat, Unit 1mg, # of units-1, Cas.no. 217-42-5