Pyrimidifen, 100 µg/ml, Acetonitrile, 1ml

n-Dodecane, ?13C: -32.54, 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-5, Cas.no. 112-40-3

EPA Method 8260B Surrogate Standard

Astragaloside IV, >98%, 20mg