Native Stock PCDDs and PCDFs, 1.2ml, nonane Back Catalog number: EPA-8290STN Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 676351 Benzoylprop-ethyl, 100 µg/ml, Acetonitrile, 1ml Price on request C13245100 17a-Ethinylestradiol, certified, 0.25g Price on request 0032.22-10UG (5)Helicene, neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 188-52-3 Price on request