■ HAZARDS
Standard laboratory safety procedures should be followed including wearing gloves and goggles. All operations should be performed in fume hoods. Methanol and butanol are flammable. Hydrochloric and formic acids are caustic and should not be inhaled. ABTS is toxic if inhaled or ingested. Anthocyanins and their aglycones are not dangerous as they are present in many common food items. They are highly colored dyes, but the colors fade with time, so they will not generally leave permanent stains on clothing.