Selenium (Se) Back Catalog number: 57134 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 91682 Acetone Price on request 10157.4-1G Sodium DL-3-hydroxybutyrate, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 150-83-4 Price on request BDE-183 2,2',3,4,4',5',6-Heptabromodiphenyl ether, 1.2ml x 50ug/ml, nonane Price on request