| Identification | Back Directory | [Name]
Direct Violet 27 | [CAS]
6426-64-8 | [Synonyms]
Direct Violet 27
C.I. Direct violet 27
C.I.Direct Violet 27:C.I.22460
2,7-Naphthalenedisulfonic acid, 3-((4'-((6-amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo)(1,1'-biphenyl)-4-yl)azo)-4-hydroxy-, trisodium salt | [Molecular Formula]
C32H24N5NaO11S3 | [MOL File]
6426-64-8.mol | [Molecular Weight]
773.74 |
| Hazard Information | Back Directory | [Preparation]
4-(4-Aminophenyl)benzenamine double nitriding, first with 4-Hydroxynaphthalene-2,7-disulfonic acid coupling, and then in alkaline conditions and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid coupling. | [Properties and Applications]
purple. Soluble in water for red light purple, and adequate soluble in ethanol for product red. In the strong sulfuric acid as dark blue, diluted for purplish red color. The dye solution to join strong hydrochloric acid for purplish red color, have precipitation; Add thick sodium hydroxide solution for red wine.
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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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3-4
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4-5
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2-3
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1-2
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1-2
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