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Reactive Blue 4; 1-amino-4-((3-((4,6-dichloro-1,3,5-triazin-2-yl)amino)-4-sulfophenyl)amino)-9,10-dioxo-9,10-dihydroanthracene-2-sulfonic acid; CAS No.: 13324-20-4;Reactive Blue 4. PROPERTIES: Reactive Blue 4 is a blue crystalline powder with a molecular formula of C32H22N8Na4O13S4 and a molecular weight of 907.78 g/mol. It is highly soluble in water, forming deep blue solutions. Storage should be at room temperature in a sealed container. Safety precautions include avoiding skin contact and eye exposure due to potential staining and mild irritation. APPLICATIONS: Reactive Blue 4 is a synthetic dye used in textile and paper industries. In materials science research, it serves as a model compound for studying dye adsorption mechanisms on various substrates (source: Journal of Hazardous Materials). Additionally, it functions as a tool for evaluating the efficiency of wastewater treatment processes, particularly those targeting dye removal through adsorption, photodegradation, or enzymatic treatments (source: Water Research).