Naproxen, 100 µg/ml, Methanol, 1ml Back Catalog number: 680986 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended DD-1289-S 1,2,8,9-Tetrachlorodibenzo-p-dioxin, 1.2ml x 50ug/ml, nonane Price on request 59576 Anions Mix Price on request 673310 Fosthiazate, 10 µg/ml, Acetonitrile, 10ml Price on request