Copper (Cu) Back Catalog number: 56029 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended BB-49 2,2',4,5'-Tetrabromobiphenyl, 1.2ml x 50ug/ml, nonane Price on request 57122 Titanium (Ti) Price on request 63202 2,2',3,3',5,5',6,6'-Octachlorobiphenyl (202) Price on request