Selenium (Se) Back Catalog number: 57834 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended MPN-75 Octachloro(13C10)naphthalene, 1.2mL x 50ug/mL, nonane Price on request 674051 Biphenyl, 10.0 µg/ml, Cyclohexane, 10ml Price on request 9245.8-K-ME Acetaminophene-d4 (Paracetamol-d4), 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 64315-36-2 Price on request