Copper - 20 PPM Back Catalog number: 50594 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended MDF-2378 2,3,7,8-Tetrachloro[13C12]dibenzofuran, 1.2ml x 50ug/ml, toluene Price on request 11187.26-2K-ME (±)-Ketoconazole,2000 µg/mL,MeOH,1mL Price on request 9414.18-100-ME Mianserin-d3 hydrochloride (methyl-d3), 100µg base/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 1219804-97-3 Price on request