Copper AA Standard (Cu) Back Catalog number: 50462 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended E888862 Estradiol 17-Valerate-d9, 1mg Price on request 58911 Sodium (Na) Price on request 3074.11-10MG 5-Methyl-2-naphthol, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 66256-29-9 Price on request