Potassium (K) Back Catalog number: 57219 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 71916 1,1-Difluoroethane, 1000µg/ml in MeOH, 1ml Price on request 1733.18-10MG 1,2-Benz[a]anthraquinone, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 2498-66-0 Price on request 70998 2-Methylbutane Price on request