Selenium (Se) Back Catalog number: 58034 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 79228 Thiophene Price on request F864800 2H-Furo[2,3-c]pyran-2-one, 1mg Price on request 3958.15-KIT Single 15 EU PAHs, 200µg/mL each in toluene, 200µg/mL, Solvent-toluene, Unit kit, # of units-1, Cas.no. Price on request