Selenium (Se) Back Catalog number: 57134 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-11455A1-1ML Chlorotoluron, 100µg/ml in Acetonitrile, 1ml Price on request N-AP-FPESA N-[3-(Dimethylamino)propan-1-yl]perfluoro-1-pentanesulfonamide, 50µg/ml in MeOH, 1,2ml Price on request 677929 Thionazin, 100 µg/ml, Ethyl acetate, 1ml Price on request