PAH-Mix 4, 10.0 µg/ml, Acetonitrile, 10ml Back Catalog number: 683866 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 72814 Roxithromycin Price on request 2030.12-50-T 1-Chlorodibenzo-p-dioxin, 50µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 39227-53-7 Price on request 54543 Calcium Hardness Price on request