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Molecular formula : MW : CAS :
nature : appearance with a metallic sheen to the purple powder blue. Water-soluble blue was green, soluble alcohol, propylene glycol and glycerin. Concentrated sulfuric acid soluble color yellow, diluted changed from green and yellow blue green. Plus NaOH aqueous solution was boiling and purple. Light, and acid-base. ADI 12.5 mg / kg. Can be used for food, medicine and cosmetics coloring agent. O-sulfonic acid and formaldehyde α - (N - ethyl-phenylamino) between the p-toluenesulfonic acid condensation, salt, refined derived.
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