Copper AA Standard (Cu) Back Catalog number: 50462 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1144.24-10MG n-Tetracosane, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 646-31-1 Price on request 53053 Mixed Calibration Standard 1 Price on request 674925 Genite, 250mg Price on request