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 50238 ICP Mix #2 Price on request 55079 WS-SDWA Trace Elements #3 Price on request 38115 Diesel Fuel #2 as TPH in Soil Price on request