3,3',5,5'-Tetrabromobisphenol-A, 50µg/ml in MeOH, 1,2ml

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

Crotaline, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 315-22-0

Resmethrin, 1000µg/ml in Acetonitrile, 1ml