QC-21 Back Catalog number: 59162 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1417.9-1G 4-n-Propylphenol, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 645-56-7 Price on request P286340 Perfluorooctadecanoi?c Acid, 100mg Price on request 2331.11-K-HX (2-Methylbutyl)benzene, 1000µg/mL, Solvent-hexane, Unit 1mL, # of units-1, Cas.no. 3968-85-2 Price on request