Selenium (Se) Back Catalog number: 50478 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 73390 Cyazofamid Price on request 94597 PCB Congeners Price on request 1738.12-100-T 4,4'-Dinitrobiphenyl, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 1528-74-1 Price on request