Paraxanthine, 50mg Back Catalog number: 682270 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 50048 Metals Mix #2 Price on request 53062 SIC 3 Price on request 0728.12-K-IO 2,3-Dimethylnaphthalene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 581-40-8 Price on request