Selenium (Se) Back Catalog number: 57034 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended XA10330200AC Atrazine 13C3, 100μg/mL in Acetone, 1ml Price on request 10299.16-K-ME Tetra-n-butyltin-d36,1000 µg/mL,MeOH,1mL, Price on request 3879.8-K-ME 2-Ethylhexanoic acid, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 149-57-5 Price on request