Naproxen, 100 µg/ml, Methanol, 1ml Back Catalog number: 680986 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 79137 Oxydemeton methyl Price on request 71105 Propyl acetate Price on request EPA-537PDSL-R1 EPA Method 537 Analyte Primary Dilution Standard, 2000ng/ml in MeOH, 1,2ml Price on request