Uranium (U) Back Catalog number: 58092 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 679181 Secnidazole hydrate, 10mg Price on request 53068 Spiking Standard Kit Price on request