Biphenyl, 10.0 µg/ml, Cyclohexane, 10ml

Perfluoro-n-[1,2,3,4,5,6,7-13C7]undecanoic acid, 50µg/ml in MeOH, 1,2ml

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

GC/MS Hexachlorobenzene Mixture 1356,6 Hexachlorobenzene [118-74-1] 50µg/ml