Reagent bottles are excellent for storing powders and liquids. Reagent bottles in tinted amber or red protect light-sensitive contents from UV light, visible light and infrared radiation.Reagent bottles are labeled using a system which includes a "hybrid" hazard labeling system. When reagents arrive from the manufacturer, the labels are intended to communicate the hazards and precautions of handling a particular chemical to the researchers and professionals who will be using the chemical.