Selenium (Se) Back Catalog number: 56034 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11770.12-100-IO 2,2',3,3',4,4',6,6'-Octachlorobiphenyl,100 µg/mL,isooctane,1mL, Price on request 96770 PAH Standard Price on request 79687 Methyl 4,7,10,13,16,19-docosahexaenoate (C22:6n-3) Price on request