| Identification | Back Directory | [Name]
disodium 4-amino-3-[(4-aminophenyl)azo]-6-[[4-[[4-amino-6(or 7)-sulphonatonaphthyl]azo]phenyl]azo]-5-hydroxynaphthalene-1-sulphonate | [CAS]
8003-79-0 | [Synonyms]
Direct Black 78
C.I.Direct Black 78:C.I.30015
disodium 4-amino-3-[(4-aminophenyl)azo]-6-[[4-[[4-amino-6(or 7)-sulphonatonaphthyl]azo]phenyl]azo]-5-hydroxynaphthalene-1-sulphonate
1-Naphthalenesulfonic acid, 4-amino-3-[(4-aminophenyl) azo]-6-[[4-[[4-amino-6(or 7)-sulfo-1-naphthalenyl]azo] phenyl]azo]-5-hydroxy-, disodium salt
disodium,(6E)-4-amino-3-[(4-aminophenyl)diazenyl]-6-[[4-[(4-amino-6-sulfonatonaphthalen-1-yl)diazenyl]phenyl]hydrazinylidene]-5-oxonaphthalene-1-sulfonate | [EINECS(EC#)]
232-325-0 | [Molecular Formula]
C32H25N9O7S2.2Na | [MOL File]
8003-79-0.mol | [Molecular Weight]
755.691 |
| Hazard Information | Back Directory | [Preparation]
4-Nitrobenzenamine diazo, and 5-Aminonaphthalene-2-sulfonic acid and 8-Aminonaphthalene-2-sulfonic acid matches, will the nitro reduction for amino, again diazo, and 4-Nitrobenzenamine diazo, in acid conditions and 4-Amino-5-hydroxynaphthalene-1-sulfonic acid coupled to product matches, then will the nitro reduction. | [Properties and Applications]
green and black. Soluble in water, slightly soluble in soluble fiber element, insoluble in other organic solvents. The strong sulfuric acid for blue to blue-ray black, diluted for purple, have precipitation; In the light of nitric acid solution for dark brown. The dye solution for blue-ray black, add thick sodium hydroxide solution to blue.
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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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3
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5
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2
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2
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AATCC
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1
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3
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3
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4
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4
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