Mefenacet, 100 µg/ml, Acetonitrile, 1ml

Methyl sulfide, 1000µg/ml in MeOH, 1ml

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

2,4-D (13C6, 99%) 100µg/mL in Acetonitrile, 1,2ml