Ascorbic acid

Hexanal-13C4

(+/-)-Normetanephrine hydrochloride,1000 µg base/mL,MeOH,1mL,

Sodium 1H,1H,2H,2H-perfluoro-1-[1,2-13C2]-hexane sulfonate (4:2), 50µg/ml in MeOH, 1,2ml