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 675405 4-Chlorophenol, 10 µg/ml, Methanol, 10ml Price on request 71319 1-Nitropyrene Price on request 59258 Copper (Cu) Price on request