Paraxanthine, 50mg Back Catalog number: 682270 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 93717 Pesticide Standard Price on request 59947 Metals Mix - 4 Price on request 9020.6-K-AN 2-Nitro-4-diphenylenediamine, 1000µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 3694-52-8 Price on request