Paraoxon-methyl, 100µg/ml in Acetonitrile, 5ml

2,2',4,4',5-Pentachlorobiphenyl (99)

Benzyl-d5 benzoate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 347840-01-1

2,7-Dichlorodibenzo-p-dioxin,50 µg/mL,n-nonane,1mL,