PSA-C18-Mix 4 Back Catalog number: 674493 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 1529.24-K-T Dibenzo[a,i]pyrene-d14, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 158776-07-9 Price on request SC-251527 1-Naphthalenesulfonic acid, 25g Price on request 673893 Profenofos, 250mg Price on request