Copper (Cu) Back Catalog number: 57429 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 674992 Ethofumesate, 250mg Price on request 0856.28-50-IO C28 Triaromatic sterane, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 80382-33-8 Price on request 73194 1,3-Dimethyl-4-ethylbenzene Price on request