Anthraquinone-2-carbonyl chloride is primarily used as an intermediate in the synthesis of dyes and pigments, particularly in the production of anthraquinone-based dyes. These dyes are widely employed in the textile industry for coloring fabrics due to their vibrant hues and excellent colorfastness. Additionally, it serves as a key reagent in organic synthesis for creating complex molecules, including pharmaceuticals and agrochemicals. Its reactive carbonyl chloride group allows it to easily form bonds with other compounds, making it valuable in the development of functional materials and specialty chemicals.