Parathion-methyl, 100 µg/ml, Toluene, 1ml

(-)-trans-11-Nor-9-carboxy-Δ9-THC, 1000µg/ml in MeOH, 1ml

Sulfamethoxazole, anal. std., 10g

9,10,12,13-Tetrachlorooctadecanoic acid, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 26533-39-1