Preparation
4-Aminobenzenesulfonic acid diazotization, and 2-Amino-4-methylphenol coupling, product to diazotization, and Naphthalen-2-ol coupling.
Properties and Applications
deep dark blue light green. Soluble in water is purple, soluble in ethanol for blue light red. In concentrated sulfuric acid for green, dilution after brown light red precipitation. Dye aqueous solution to join hydrochloric acid for bordeaux red; With sodium hydroxide solution for blue light green.
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Standard
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Ironing Fastness
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Light Fastness
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Fulling
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Persperation Fastness
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Soaping
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Water
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Alkali
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Acid
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ISO
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5
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6
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4-5
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4
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4-5
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5
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5
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