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| | C.I. Direct brown 24 Basic information |
| Product Name: | C.I. Direct brown 24 | | Synonyms: | Benzoic acid, 5-((4'-((4-((2,4-diaminophenyl)azo)-6(or 7)-sulfo-1-naphthalenyl)azo)(1,1'-biphenyl)-4-yl)azo)-2-hydroxy-, disodium salt;C.I. Direct brown 24;C.I.Direct Brown 24:C.I.31700;Direct Brown 24 | | CAS: | 8003-74-5 | | MF: | C35H26N8O6S.2Na | | MW: | 732.69 | | EINECS: | | | Product Categories: | | | Mol File: | Mol File | ![C.I. Direct brown 24 Structure]() |
| | C.I. Direct brown 24 Chemical Properties |
| | C.I. Direct brown 24 Usage And Synthesis |
| Preparation | 4-(4-Aminophenyl)benzenamine double nitriding, first coupled with 2-Hydroxybenzoic acid, and then and 5-Aminonaphthalene-2-sulfonic acid and 8-Aminonaphthalene-2-sulfonic acid coupling, its product to diazo, and Benzene-1,3-diamine coupling. | | Properties and Applications | dark red light brown. Soluble in water for brown, and adequate soluble in alcohol for red sauce. In the dark for the strong sulfuric acid, diluted for olive brown. The dye solution to join strong hydrochloric acid with brown precipitation; Add thick sodium hydroxide solution have orange brown 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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4-5
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2
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2-3
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3
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| | C.I. Direct brown 24 Preparation Products And Raw materials |
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