Dimethomorph, 100 µg/ml, Ethyl acetate, 5ml

3-Ethoxy propionaldehyde diethyl acetal, 1g

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

2,6-Dichloroaniline, 100 µg/ml, Methanol, 5ml