O-Methylaniline with 2-(3,6-Dichloro-9H-xanthen-9-yl)benzoic acid condensation.
brilliant red light purple. Soluble in water for amaranth, soluble in ethanol for purple, slightly soluble in acetone, soluble in Cellosole. In concentrated sulfuric acid for red orange, dilution after red purple; In concentrated nitric acid for magenta; In concentrated hydrochloric acid for red purple. Dye aqueous solution to join concentrated hydrochloric acid blue precipitation. Used for alcohol, the alcohol solvent, alcohol soluble paint, printing ink, cosmetics coloring.
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Standard
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Light Fastness
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Heat-resistant(℃)
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water
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Sodium Carbonate(5%)
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Hydrochloric acid(5%)
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Melting point
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Stable
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ISO
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Good
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140
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Well
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Well
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Well
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