Solvent Red 111 is a versatile solvent dye from the anthraquinone class that produces a bright, yellowish-red shade. It offers a good balance of heat stability, lightfastness, and economic value. It is widely used for coloring a broad range of plastics, including polystyrene, ABS, and PMMA. Its good solubility in hydrocarbons also makes it a staple for coloring fuels, oils, and waxes.
