Metoprolol tartrate, 100 µg/ml, Methanol, 1ml

Chloramphenicol, 100 µg/ml, Acetonitrile, 1ml

5 alpha(H),17 alpha(H),(20R)-3ß-Acetoxycholest-8(14)-ene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 6562-21-6

Pentachlorophenol 13C6, certified, 10mg