Amiodarone-d4 HCl, 100µg/ml in MeOH, 1ml

Dimefuron, 10.0 µg/ml, Acetonitrile, 10ml

Fentanyl-D5

Sodium bis(1H,1H,2H,2H-[1,2-13C2]perfluorooctyl)phosphate, 50µg/ml in MeOH, 1,2ml