Selenium (Se) Back Catalog number: 58134 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 71682 n-Butyl sulfide Price on request 679461 4,4'-DDT, 100 µg/ml, Methanol, 1ml Price on request 10868.17-K-AN Atropine,1000 µg/mL,acetonitrile,1mL Price on request