Ranitidine-d6 Hydrochloride (>90%), 1mg

2-Acetamido-5-nitropyridine, >98%, 5g

n-Dotriacontane, ?13C: -28.34, 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-5, Cas.no. 544-85-4

Perfluoro-n-[2,3,4-13C3]butanoic acid, 50µg/ml in MeOH, 1,2ml