PAH Standard (20 ppm) Back Catalog number: 98653 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3397.13-100 Fenamiphos sulfoxide, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 31972-43-7 Price on request 68C-PAR Native Toxics/LOC Stock Solution, 1.2ml, nonane Price on request 678152 Terbumeton, 100 µg/ml, Acetonitrile, 5ml Price on request