13C2,15N2-Metronidazole, 10mg

8-Chloroperfluorooctylphosphonic acid, 50µg/ml in MeOH, 1,2ml

Paraoxon-ethyl, 10 µg/ml, Cyclohexane, 10ml

Estrone-2,4,16,16-d4, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 53866-34-5