Naproxen, 100 µg/ml, Methanol, 1ml Back Catalog number: 680986 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 63112B PCB 112, 1000µg/ml in Isooctane, 10ml Price on request 2326.12-100-IOX5 Arochlor 5460 , 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-5, Cas.no. 11126-42-4 Price on request 3181.12-K-IO Ethyl decanoate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 110-38-3 Price on request