Copper (Cu) - 2 PPM Back Catalog number: 50591 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DPE-3 4-Chlorodiphenyl ether, 1.2ml x 50ug/ml, nonane Price on request 32371 n-Propylbenzene Price on request 677514 Dodecyl gallate, 500mg Price on request