Copper (Cu) - 5 PPM Back Catalog number: 50592 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677847 4-Methyl-1H-benzotriazole, 10mg Price on request 0298.19-50-T 1-Methylbenz[a]anthracene, 50 µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 2498-77-3 Price on request 95442 2,3,4-Trifluorotoluene Price on request