Copper (Cu) - 2 PPM Back Catalog number: 50591 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3448.16-100-AN Methoxychlor Price on request 688330 Quinmerac BH 518-2, 10mg Price on request 0345.19-K-IO 4-n-Heptylbiphenyl, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 59662-32-7 Price on request