2-Chlorophenol, 100 µg/ml, Methanol, 5ml

2,3,3',4,5,5'-Hexachloro-4'-methoxy[13C12]biphenyl, 1.2ml x 50ug/ml, toluene

O,O-Dimethylphosphorodithioic acid ammonium salt,

3-Ethoxy propionaldehyde diethyl acetal, 1g