Email this pagePrint this page Sodium Dithionite - (Sodium Hydrosulfite) Go back to: Chemical Reagents, pH Indicators and Biological Stains Product Code: C2578 F.W. 174.10CAS# 7775-14-6Laboratory Grade, Powder Hazard Rating4-Extreme 3-Severe 2-Moderate 1-Slight 0-Minimal Health3 Flammability1 Reactivity2 † Subject to a UPS hazardous material surcharge of $20.00 per shipment. 500 grams$32.15 each 3-D Molecule Model of Sodium Hydrosulfite : From the ChemExper Chemical Directory MSDS for Sodium Dithionite - (Sodium Hydrosulfite)