Copper (Cu) - 7 PPM Back Catalog number: 50744 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 680154 1-Pentanol, 5ml Price on request 2260.2-1ML 1,1-Dichloroethylene, in Certan bottle, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 75-35-4 Price on request 33691 Ethanedial Price on request