Isofetamid, 100 µg/ml, Acetonitrile, 1ml

Metformin, 1000μg/ml in MeOH, 1ml

4-Bromo-2-nitroaniline, , Solvent-, Unit , # of units-, Cas.no. 875-51-4

Isocaffeine (1,3,9-Trimethylxanthine), neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 519-32-4