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| C.I. Direct brown 151, disodium salt Basic information |
Product Name: | C.I. Direct brown 151, disodium salt | Synonyms: | 2,7-Naphthalenedisulfonic acid, 6-((2,4-diaminophenyl)azo)-3-((4'-((2,4-diaminophenyl)azo)(1,1'-biphenyl)-4-yl)azo)-4-hydroxy-, disodium salt;C.I. Direct brown 151, disodium salt;Direct Brown 151;C.I.Direct Brown 151:C.I.31685 | CAS: | 10130-38-8 | MF: | C34H29N10NaO7S2 | MW: | 776.78 | EINECS: | | Product Categories: | | Mol File: | 10130-38-8.mol | |
| C.I. Direct brown 151, disodium salt Chemical Properties |
| C.I. Direct brown 151, disodium salt Usage And Synthesis |
Preparation | 4-(4-Aminophenyl)benzenamine double nitriding, in alkaline conditions before 3-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?coupling, product to diazo, and Benzene-1,3-diamine (2 Moore) coupled. | Properties and Applications | dark red light brown. Slightly soluble in water for red sauce, soluble in ethanol. In the dark for the strong sulfuric acid, diluted light for palm gray, with black precipitation. The dye solution with strong hydrochloric acid has the purple precipitation; With strong sodium hydroxide solution for red to blue light is red.
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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2
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3
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4
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AATCC
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5
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5
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3-4
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2-3
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5
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| C.I. Direct brown 151, disodium salt Preparation Products And Raw materials |
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