Copper (Cu) Back Catalog number: 57129 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 52315 GFAA Initial Calibration Verification Price on request 11121.14-50-T 7,8-Dibromo-1,2,3,4,11,11-hexachloro1,4,4a,5,6,7,8,9,10,10a-decahydro-1,4-methanobenzocyclooctane,50 µg/mL ,toluene,1mL, Price on request 71955 n-Butylcyclohexane Price on request