PSA-C18-Mix 4 Back Catalog number: 674493 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 10113.18-50-IO 1,9-Dimethyl-7-ethylphenanthrene, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 46870-52-4 Price on request 72116 Butyl paraben Price on request 71891 1,2,3,4-Tetrahydronaphthalene Price on request