Preparation
2-Amino-3,5-dimethylbenzenesulfonic acid diazo, and 6-Acetamido-4-hydroxynaphthalene-2-sulfonic acid coupling.
Properties and Applications
red light orange. Soluble in water for orange, and adequate soluble in alcohol for orange. The strong sulfuric acid in red for quality, to orange diluted. In water solution to join strong hydrochloric acid for orange; With strong sodium hydroxide solution into orange brown. Can be used for the wool dyeing and printing, good levelness.
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Standard(red)
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Light Fastness
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Soaping
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Persperation Fastness
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Oxygen bleaching
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Fastness to seawater
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Fading
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Stain
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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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6
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3
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1-2
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2-3
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![2-Naphthalenesulfonic acid, 6-(acetylamino)-3-[(2,4-dimethyl-6-sulfophenyl)azo]-4-hydroxy-, disodium salt Structure](https://www.chemicalbook.com/CAS/20200331/GIF/6369-41-1.gif)