Metformin, 1000μg/ml in MeOH, 1ml

1-Nitroperylene, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 35337-20-3

Perfluoro-n-[1,2-13C2]decanoic acid, 1.2ml x 50ug/ml, methanol

5?-Cholestane