Potassium (K) Back Catalog number: 50687 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0010.13-10MG Perinaphthenone, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 548-39-0 Price on request 90397 Surrogate Standard Price on request 66029 PCB No. 29, 100µg/ml in Isooctane, 1ml Price on request