Selenium (Se) Back Catalog number: 50478 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended X9018 Benzo(k)fluoranthene Price on request 672860 Imazethapyr, 100mg Price on request 9393.24-50-AN 10:2 Di-PAPS, 50µg/mL, Solvent-acetonotrile, Unit 1mL, # of units-1, Cas.no. 1895-26-7 Price on request