Tolbutamide

2,3,3',4,4',5,5',6-Octachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

Dibromoacetonitrile, 1000μg/ml in Acetone, 1ml

Metolachlor-2-hydroxy,100ng/µL in Acetonitrile,1ml