Pirimiphos-methyl, 100 µg/ml, Toluene, 1ml

EPA Method 528 Internal Standard

4-n-Propylbiphenyl, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 10289-45-9

DL-2-Phenylpropionic acid, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 492-37-5