Acetaminophen, 100 µg/ml, Acetonitrile, 1ml

1,1'-Azabis[cyclohexenecarbonitrile), 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 2094-98-6

Caffeine-13C3, 5mg

Perfluoro-n-[1,2-13C2]dodecanoic acid, 50µg/ml in MeOH, 1,2ml