2,3,3',4,4',5'-Hexachlorobiphenyl (157)

Dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene

Chlorobenzene-d5 , neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 3114-55-4

N-Nitroso-di-n-butylamine, 100 µg/ml, Methanol,