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| a purplish-red, water-soluble powder, C20H11N2O10Na3, an azo dye used chiefly to color pharmaceuticals, food, and garments |
| a preparation containing an insoluble dye converted by reduction into a soluble leuco base, or a vessel containing such a preparation |
| algin (āl'jĭn) Pronunciation Key
A mucilaginous polysaccharide occurring in the cell walls of brown algae. Its derivatives are widely used as thickening, stabilizing, emulsifying, or suspending agents in industrial, pharmaceutical, and food products, such as ice cream. |