Copper (Cu) - 1 PPM Back Catalog number: 50590 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8499.12-100-AN Dapsone Price on request DF-1238-S 1,2,3,8-Tetrachlorodibenzofuran, 1.2ml x 50ug/ml, nonane Price on request 3426.12-100-AN Isodrin Price on request