PSA-C18-Mix 6 Back Catalog number: 674789 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 675366 4-OH-Pyriproxyfen (4'-OH-Pyr), 10mg Price on request 0026.40-100-T Quaterrylene, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 188-73-8 Price on request 59345 Perchlorate (ClO4-) Price on request