Copper (Cu) - 1 PPM Back Catalog number: 50590 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 676624 3-(2,2-Dichloroethenyl)-2,2-dimethylcyclopropaneca Price on request 679167 13C3-Nitrofurantoin, 5mg Price on request 79259 2,4,5-TP acid Price on request