Aztreonam, 50mg

Metrafenone, 100 µg/ml, Acetonitrile, 5ml

Benzo[k]fluoranthene-d12, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-10, Cas.no. 93952-01-3

1,4-Dinitrobenzene, 1000µg/ml in MeOH, 1ml