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

CONOSTAN Custom Blend Sulfur, 0.002% Biodisel,100g

Arochlor 1260 , 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-5, Cas.no. 11096-82-5

Dieldrin-13C12,100 µg/mL,n-nonane,1mL