Copper (Cu) Back Catalog number: 50743 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1944.8-1GX2 Sodium tetraethylborate, neat, Solvent-neat, Unit 1g, # of units-2, Cas.no. 15523-24-7 Price on request 83505 Dalapon methyl ester Price on request 52061 SIC 2 Price on request