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| C.I. Direct brown 75 Basic information |
Product Name: | C.I. Direct brown 75 | Synonyms: | Benzoic acid, 5-((4'-((1-amino-8-hydroxy(1-naphthalenylazo)-3,6-disulfonaphthalenyl)azo)(1,1'-biphenyl)-4-yl)azo)-2-hydroxy-, trisodium salt;C.I. Direct brown 75;C.I.Direct Brown 75:C.I.30325;Direct Brown 75 | CAS: | 1324-84-1 | MF: | C39H27N7O10S2.3Na | MW: | 886.79 | EINECS: | | Product Categories: | | Mol File: | Mol File | ![C.I. Direct brown 75 Structure]() |
| C.I. Direct brown 75 Chemical Properties |
| C.I. Direct brown 75 Usage And Synthesis |
Preparation | 4-(4-Aminophenyl)benzenamine double nitriding, and 2-Hydroxybenzoic acid coupling, and then and Naphthalen-1-amine diazo, Coupled with?4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid??coupling product obtained. | Properties and Applications | dark red light brown. The strong sulfuric acid for red light blue, purple solution for red after diluted, precipitation; In the nitric acid for brown. The dye solution to join strong hydrochloric acid have dark purple precipitation; Add thick sodium hydroxide solution is palm red light.
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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4
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4-5
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1-2
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1-2
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3
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| C.I. Direct brown 75 Preparation Products And Raw materials |
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