Cyanocobalamine, 98% (dry weight basis),neat,neat,100mg,

Isoxaben, 10.0 µg/ml, Acetonitrile, 10ml

d4 C27 alpha alpha alpha (20R)-Cholestane, 100µg/mL in Isooctane, 5 x 1ml

2H-Perfluoro-[1,2-13C2]-2-decenoic acid (8:2), 50µg/ml in Isopropanol, 1,2ml