Email this pagePrint this page Propionic Acid Go back to: Chemical Reagents, pH Indicators and Biological Stains Product Code: C2428 F.W. 74.08CAS# 79-09-4Reagent Grade Hazard Rating4-Extreme 3-Severe 2-Moderate 1-Slight 0-Minimal Health3 Flammability2 Reactivity0 † Subject to a UPS hazardous material surcharge of $20.00 per shipment. 500 mls$29.83 each 4 liters$119.32 each 3-D Molecule Model of Propionic Acid : From the ChemExper Chemical Directory MSDS for Propionic Acid