D3-(±)-Naproxen, 100 µg/ml, Methanol, 1ml Back Catalog number: 677719 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 59978 ICP Mix Price on request 95407 Aroclor 1260 & Tetrachloro-m-xylene Price on request 40012 EPA Method 607 - Nitrosamines Price on request