Selenium (Se) Back Catalog number: 57834 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0978.10-K-TX5 Naphthalene-d8, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-5, Cas.no. 1146-65-2 Price on request 96512 alpha-Hydroxyalprazolam-D5 Price on request 675933 D5-Propachlor ESA sodium salt, 5mg Price on request