1-(4-Chlorophenyl)urea, 100 µg/ml, Acetonitrile,

Pentachloronitrobenzene

ß-Glucuronidase from overexpressing recombinant E. coli ,>50,000 u/ml,50% aqueous glycerol soln,5mL

Tetrachloroethene, 100 µg/ml, Methanol, 5ml