Preparation
2-Amino-5-(4-nitrobenzamido)benzenesulfonic acid diazo, and 6-(4-Nitrobenzamido)-1-naphthol-3-sulfonic acid?coupling, then use the method will nitro reduction.
Properties and Applications
blue light pink. Soluble in water for red, slightly soluble in ethanol is shallow orange. The strong sulfuric acid to red light purple, diluted is shallow orange. The dye solution to join strong hydrochloric acid for red; Add thick sodium hydroxide solution for orange brown.
Standard
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Acid Resistance
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Alkali Resistance
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Light Fastness
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Soaping
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Water
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Fading
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Stain
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Fading
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Stain
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AATCC
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1
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3
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3-4
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