| Identification | Back Directory | [Name]
tetrasodium 3-[[4-[[[[4-[(2-amino-8-hydroxy-6-sulphonato-1-naphthyl)azo]-3-sulphonatophenyl]amino]carbonyl]amino]-2-sulphonatophenyl]azo]-4-hydroxy-7-(phenylamino)naphthalene-2-sulphonate | [CAS]
6771-82-0 | [Synonyms]
C.I.25385
Direct Violet 6
C.I.Direct Violet 6
C.I.Direct Violet 6:C.I.25385
6-Amino-4-hydroxy-5-[[4-[N'-[4-[(1-hydroxy-6-(phenylamino)-3-sodiosulfo-2-naphthalenyl)azo]-3-sodiosulfophenyl]ureido]-2-sodiosulfophenyl]azo]naphthalene-2-sulfonic acid sodium salt
tetrasodium 3-[[4-[[[[4-[(2-amino-8-hydroxy-6-sulphonato-1-naphthyl)azo]-3-sulphonatophenyl]amino]carbonyl]amino]-2-sulphonatophenyl]azo]-4-hydroxy-7-(phenylamino)naphthalene-2-sulphonate
tetrasodium 3-[[4-[[[[4-[(2-amino-8-hydroxy-6-sulphonato-1-naphthyl)azo]-3-sulphonatophenyl]amino]carbonyl]amino]-2-sulphonatophenyl]azo]-4-hydroxy-7-(phenylamino)naphthalene-2-sulphonate | [EINECS(EC#)]
229-830-3 | [Molecular Formula]
C39H26N8Na4O15S4 | [MOL File]
6771-82-0.mol | [Molecular Weight]
1066.89 |
| Hazard Information | Back Directory | [Preparation]
1,3-Bis(4-amino-3-sulfophenyl)urea double nitriding, first in acid conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid?coupled, then in alkaline conditions and 4-Hydroxy-7-(phenylamino)naphthalene-2-sulfonic acid coupling. | [Properties and Applications]
red light purple. Soluble in water for product red, slightly soluble in alcohol. The strong sulfuric acid for red sauce, diluted for purple. The dye solution to join strong hydrochloric acid for purple, have precipitation; Add thick Red sauce sodium hydroxide solution for wine Red, have 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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4
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4
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1-2
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2
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