Paraoxon-methyl, 100 µg/ml, Toluene, 5ml Back Catalog number: 675996 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 8484.15-K-ME Metoprolol (free base), 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 51384-51-1 Price on request 673770 Cyanazine, 10 µg/ml, Ethyl acetate, 10ml Price on request 59972 ICP-MS Calibration Standard #1 Price on request