Naproxen, 100µg/ml in MeOH, 1ml Back Catalog number: 96589 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 83597 EPA Method 515.2 Analytes - Underivatized Price on request 9444.11-100 Tokuthion, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 344643-46-4 Price on request EPA-1613STOCK EPA Method 1613 Native Stock Solution, 1.2ml, nonane Price on request