Preparation
2-Methoxy-4-nitrobenzenamine diazo, and 4-(8-Hydroxy-6-sulfonaphthalen-2-ylamino)benzoic acid coupling, then use glucose and sodium hydroxide reduction, reoccupy ammonia containing copper sulfate solution of processing.
Properties and Applications
blue ash. Soluble in water for dark to gray, not soluble in alcohol. In the dark for the strong sulfuric acid, diluted Gray light purple for a precipitation. Dye with strong hydrochloric acid solution for violet black, precipitation; Add thick sodium hydroxide solution as dark blue, precipitation.
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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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ISO
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3
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5
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6
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2-3
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2-3
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AATCC
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3
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4
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6
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2-3
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4
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![Copper, diazotized 2-methoxy-4-nitrobenzenamine-4-[(8-hydroxy-6-sulfo-2-naphthalenyl)amino]benzoic acid coupling products complexes Structure](https://www.chemicalbook.com/CAS/GIF/1325-32-2.gif)