Clopyralid, 100 µg/ml, Acetonitrile, 5ml

EPA Method 500 Series Internal Std #4

3-Methylcarbazole, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 4630-20-0

2-Nitronaphthalene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 581-89-5