Copper (Cu) - 2 PPM Back Catalog number: 50591 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 676774 Propachlor ESA sodium salt, 10mg Price on request 1713.14-100MG 4-Heptylcyclohexanecarboxylic acid, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 38792-94-8 Price on request 9392.20-50UG 8:2 Di-PAPS, neat, Solvent-neat, Unit ca. 50 µg, # of units-1, Cas.no. 678-41-1 Price on request