C20H19ClN4 Basic Red 2 CAS 477-73-6 Cosmetic Intermediates Dyes And Pigments
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... in ethanol. It is green in concentrated sulfuric acid, blue after dilution, and turns to red. Its aqueous solution produces a brown-red precipitate when sodium hydroxide is added, and blue-purple when hydrochloric acid is added. Uses: Basic pink is...
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