Selenium (Se) Back Catalog number: 57234 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3281.19-K-IO Methyl 9-trans-12-hydroxyoctadecenoate , 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 7706-01-6 Price on request 1285.26-K-IO 1-Hexacosanol, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 506-52-5 Price on request 79022 Heptachlor, 1000µg/ml in Hexane, 1ml Price on request