4,4'-DDT, 100 µg/ml, Cyclohexane, 1ml

7β-Estradiol-d3 17-Acetate, 5mg

Bromoform, 100 µg/ml, Methanol, 1ml

2,2',3,3',5,5',6,6'-Octachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane