D3-(±)-Naproxen, 100 µg/ml, Methanol, 1ml

Ethyl-ß-D-6-glucuronide-d5, 100µg base/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no.

Toxaphene, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 8001-35-2

Chlorfenvinphos, 10 µg/ml, Acetonitrile, 10ml