Copper (Cu) - 2 PPM Back Catalog number: 50591 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 98353 Ethanol Price on request 681952 Heptenophos, 10.0 µg/ml, Acetone, 10ml Price on request 32601 1,2,3-Trimethylbenzene Price on request