Difenoxuron, 100 µg/ml, Acetonitrile, 1ml

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

2,4,6-Trimethyldibenzothiophene, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 185493-79-7

Phenanthrene, 10µg/ml in Acetonitrile, 10ml