Selenium (Se) Back Catalog number: 57134 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 70291 1,1,1-Trichloroethane Price on request 66112 PCB No. 112, 100ug/ml in Isooctane, 1ml Price on request 675450 Ampicillin trihydrate, 100mg Price on request