| Identification | Back Directory | [Name]
disodium 5-[[4'-[[2,4-dihydroxy-3-[(4-sulphonatophenyl)azo]phenyl]azo][1,1'-biphenyl]-4-yl]azo]salicylate | [CAS]
2893-80-3 | [Synonyms]
C.I.30140
Direct Brown GR
Trisulfon Brown 3R
C.I. Direct Brown 6
Direct Fast Brown GR
Showa Direct Fast Brown GR
C.I.Direct Brown 6:C.I.30140
disodium 5-[[4'-[[2,4-dihydroxy-3-[(4-sulphonatophenyl)azo]phenyl]azo][1,1'-biphenyl]-4-yl]azo]salicylate
5-[[4'-[[2,4-Dihydroxy-3-[(4-sulfophenyl)azo]phenyl]azo]-1,1'-biphenyl-4-yl]azo]-2-hydroxybenzoic acid disodium salt | [EINECS(EC#)]
220-768-2 | [Molecular Formula]
C31H20N6Na2O8S | [MOL File]
2893-80-3.mol | [Molecular Weight]
682.57 |
| Hazard Information | Back Directory | [Preparation]
4-(4-Aminophenyl)benzenamine double nitriding, 4-Aminobenzenesulfonic acid?coupled with first, then and Resorcinol coupling, 2-Aminobenzenesulfonic acid diazo, and formation of accidentally coupled nitrogen compounds. | [Properties and Applications]
brown. Soluble in water for yellow brown, slightly soluble in soluble fiber element, insoluble in other organic solvents. The strong sulfuric acid to red light purple, yellow light brown after diluted precipitation. The dye solution to join strong hydrochloric acid have yellow brown precipitation; Add thick, hydrogen oxidation solution for orange to red.
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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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3-4
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2-3
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2
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2
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AATCC
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3
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2
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2-3
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2-3
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4
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