Naproxen, 250mg Back Catalog number: 673089 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 674066 D3-Thiamethoxam, 100 µg/ml, Acetone, 1ml Price on request 2647.12-50-IO 2,3,3',4,4',5,5',6-Octabromodiphenyl ether, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 446255-56-7 Price on request 3390.9-100 Endosulfan alcohol, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 2157-19-9 Price on request