"Dioxin-Like" PCBs Calibration Kit , 7 x 500ul, nonane

2-Ethylhexanoic acid, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 149-57-5

Heptachlor epoxide

Tetra-n-butyltin-d36,1000 µg/mL,MeOH,1mL,