2,4-D-d3, 100μg/ml in Acetonitrile, 1ml

PCB No. 157, 10µg/ml in Isooctane, 10ml

1-Methyl-4-nitronaphthalene, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 880-93-9

4-tert-Octylphenol-13C6