Selenium (Se) Back Catalog number: 57834 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 71343 2,2-Dimethylheptane Price on request 680254 Phosmet-oxon, 10.0 µg/ml, Acetonitrile, 10ml Price on request 675760 Ditalimfos, 100 µg/ml, Ethyl acetate, 5ml Price on request