4-Acetamidoantipyrine, 10.0 µg/ml, Acetonitrile,

Extended Calibration/Low Level Solution ((CS1)/2) , 500uL, nonane

Nifursol, 100mg

N-Nitrosodiethylamine, 2000µg/mL, Solvent-dichloromethane, Unit 1mL, # of units-1, Cas.no. 55-18-5