| Identification | Back Directory | [Name]
2-Hydroxy-5-[[4'-[(1,6-dihydroxy-3-sodiosulfo-2-naphthalenyl)azo]-1,1'-biphenyl-4-yl]azo]benzoic acid sodium salt | [CAS]
6797-93-9 | [Synonyms]
C.I.22290
Direct Red 52
C.I.Direct Red 52
Benzo Fast Red GL
C.I.Direct Red 52:C.I.22290
2-Hydroxy-5-[[4'-[(1,6-dihydroxy-3-sodiosulfo-2-naphthalenyl)azo]-1,1'-biphenyl-4-yl]azo]benzoic acid sodium salt
Benzoic acid, 5-((4'-((1,6-dihydroxy-3-sulfo-2-naphthalenyl)azo)(1,1'-biphenyl)-4-yl)azo)-2-hydroxy-, disodium salt | [Molecular Formula]
C29H21N4NaO8S | [MOL File]
6797-93-9.mol | [Molecular Weight]
608.56 |
| Hazard Information | Back Directory | [Preparation]
4-(4-Aminophenyl)benzenamine double nitriding, respectively with 2-Hydroxybenzoic acid and 4,7-Dihydroxynaphthalene-2-sulfonic acid?coupling. | [Properties and Applications]
blue-ray red. Soluble in water for red, moderate soluble in alcohol is palm red light orange to orange. In the dark for the strong sulfuric acid, diluted for Shallow red time The dye solution to join strong hydrochloric acid for brown, have precipitation; Add thick sodium hydroxide solution have red precipitate.
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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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5
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3
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1-2
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1-2
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