Native Stock PCDDs and PCDFs, 1.2ml, nonane Back Catalog number: EPA-8290STN Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended A15644950AL-100 Norethisterone, 100µg/mL in Acetonitrile, 1ml Price on request S-4476 D6729 Calibration Standard Mixtures Reference sample ARC96OX from Alberta Research Council, Edmonton, Canada Spark ignition engine fuel standard of known composition and concentration by mass. Price on request 79279 cis-Chlordane Price on request