Email this pagePrint this page Naptholbenzein - Indicator Solution Go back to: Chemical Reagents, pH Indicators and Biological Stains Product Code: C2151 ASTM D974-64 Hazard Rating4-Extreme 3-Severe 2-Moderate 1-Slight 0-Minimal Health2 Flammability3 Reactivity0 † Subject to a UPS hazardous material surcharge of $20.00 per shipment. 100 mls$41.10 each 500 mls$63.63 each 1 liter$108.69 each MSDS for Naptholbenzein - Indicator Solution