Heptachlor-exo-epoxide, 10 µg/ml, Acetonitrile,

2,5-Dimethylphenol, 100 µg/ml, Acetonitrile, 5ml

N-Nitroso-N-ethylbutylamine,neat,neat,10mg,

Benzyldimethyldecylammonium chloride, 100 µg/ml,