Calibration Standard Kit Back Catalog number: 52090 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended PFPRA Perfluoropropanoic acid, 50µg/ml in MeOH, 1,2ml Price on request 9407.15-10MG Metoprolol-d7 hydrochloride (isopropyl-d7), neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 1219798-61-4 Price on request C0879 4-Chloro-2-nitrobenzoic Acid, >98%, 25g Price on request