Metformin hydrochloride, 100 µg/ml, Methanol, 1m

Calibration Standard Mix 4

Neopinone, 100µg/m, Solvent-chloroform, Unit 1mL, # of units-1, Cas.no. 509-66-0

4-Chlorophenol, 100 µg/ml, Methanol, 5ml