Selenium (Se) Back Catalog number: 57234 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 72064 Diethyl phthalate-d4 Price on request 3641.12-K-IO Ethyl 4-trans-decenoate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 76649-16-6 Price on request 684469 D8-1,4-Diaminobutane, 10mg Price on request