Selenium (Se) Back Catalog number: 59960 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675484 2-Nitrobenzaldehyde, 100mg Price on request 0416.13-150-CYX5 n-Tridecane, ?13C: -33.47, 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-5, Cas.no. 629-50-5 Price on request 50121 Anion Standard Price on request