Selenium (Se) Back Catalog number: 57834 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2518.7-500MG Theophylline, neat, Solvent-neat, Unit 500mg, # of units-1, Cas.no. 58-55-9 Price on request 3080.11-K-IO 2,4-Dimethylquinoline, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1198-37-4 Price on request 0853.30-100-IO Cycloartane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 511-64-8 Price on request