D2-Dimethyl fumarate, 100 µg/ml, Acetonitrile, 1

p-n-Nonylphenol Diethoxylate (ring-13C6), 100µg/ml in Nonane, 1,2ml

n-Tetradecane

4,4'-DDE, 10.0 µg/ml, Ethyl acetate, 10ml