S421, 10 µg/ml, Ethyl acetate, 10ml

Heptachlor-exo-epoxide, 100 µg/ml, Methanol, 1ml

3-Methyl-d3-indole-d5,100 µg/mL,MeOH,1mL

2,3,3',4',5,6-Hexachloro-4-methoxybiphenyl, 1.2ml x 50ug/ml, nonane