Bensulfuron-methyl, 100 µg/ml, Acetonitrile, 1ml

D6-Metolachlor, 100µg/ml in Acetonitrile, 1ml

Theophylline, neat, Solvent-neat, Unit 500mg, # of units-1, Cas.no. 58-55-9

U-{13C11}-Chloramphenicol