Potassium (K) Back Catalog number: 58019 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3947.2-1ML Monochloroethane, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 75-00-3 Price on request 43026 GC/MS Calibration Standard Price on request 71780 N-Phenyl-1,4-phenylenediamine Price on request