Pyrazon, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 1698-60-8

Tadalafil, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 171596-29-5

EPA Method 515.1 Surrogate Standard

Pyriprole, 100 µg/ml, Acetonitrile, 1ml