Naproxen, 100 µg/ml, Methanol, 1ml Back Catalog number: 680986 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 71231 2,4-Dimethylpentane Price on request 673945 Trinexapac-methyl, 10.0 µg/ml, Acetonitrile, 10m Price on request 79196 2,4-D Price on request