Endosulfan-sulfate, 100 µg/ml, Acetonitrile, 5ml

Metoprolol tartrate, neat, Solvent-neat, Unit 250mg, # of units-1, Cas.no. 56392-17-7

EPA Method 508 Surrogate Standard

Chloroparaffin C14-C17 52% Cl, 100μg/ml in Cyclohexane, 1ml