Profenofos, 100 µg/ml, Cyclohexane, 5ml

Ibuprofen, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 15687-27-1

EPA Method 537 Surrogate Primary Dilution Standard, in MeOH, 1,2ml

Dinoseb