Heptachlor-endo-epoxide (trans-, isomer A), certified, 10mg

(+)-Longicyclene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1137-12-8

N-Nitrosodiethanolamine, 1000µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 1116-54-7

1,3,7,9-Tetrachlorodibenzo-p-dioxin, 1.2ml x 50ug/ml, nonane