Hexachlorobenzene (HCB), 100µg/ml in CY, 5ml

2,4-D-methyl ester, 250mg

4-Isobutylbenzoic acid, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 38861-88-0

4-Methyl-2,2',5,5'-tetrachlorodiphenylmethane