Preparation
4-((4-Amino-2,5-dimethylphenyl)(phenyl)methyl)-2,5-dimethylbenzenaminedouble nitride, and 3-Hydroxynaphthalene-2,7-disulfonic acid (2 Moore) coupled.
Properties and Applications
yellow light red. Soluble in water for wine, not soluble in alcohol. The strong sulfuric acid for blu-ray red, diluted into red. In water solution to join hydrochloric acid discoloration; Add sodium hydroxide solution into deep red.
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Standard
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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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3
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3
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3-4
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3
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1
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4-5
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![2,7-Naphthalenedisulfonic acid, 4,4'-[(phenylmethylene)bis[(2,5-dimethyl-4,1-phenylene)azo]]bis[3-hydroxy-, tetrasodium salt Structure](https://www.chemicalbook.com/CAS/20211123/GIF/6459-71-8.gif)