Propionic acid Back Catalog number: 70345 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended EPA-1613ISS Internal Standard Spiking Solution, 200ng/ml n Nonane/0.8% toluene, 1,2ml Price on request MFOEA 2-Perfluorooctyl (13C2)ethanoic acid (13C2-8:2 FTCA), 50µg/ml in Isopropanol, 1,2ml Price on request 94601 Benzo(a)pyrene Price on request