Copper (Cu) - 2 PPM Back Catalog number: 50591 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 95369 Formaldehyde Price on request 73060 Fentanyl Price on request 3409.10-100 Fluometuron, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 2164-17-2 Price on request