Copper - 20 PPM Back Catalog number: 50594 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2099.18-10MG Di-n-pentyl phthalate, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 131-18-0 Price on request 71649 N,N-Dimethylacetamide Price on request 673633 Metazachlor, 10.0 µg/ml, Ethyl acetate, 10ml Price on request