Methanol, 1g

17 alpha(H),21ß(H)-(22RS)-Trishomohopane , 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 54340-13-5

D4-Ketoprofen, 100 µg/ml, Acetonitrile, 1ml

N-Nitroso-diethylamine, certified, 0.1g