Propionic Acid (C3H6O2) Back Catalog number: 50678 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2352.16-100-ME Tetrabutylammonium bromide, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 1643-19-2 Price on request 71082 2,6-Dimethylaniline Price on request 90506 Benzo(e)pyrene,2000µg/ml in methylene chloride,1ml Price on request