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| Direct blue 9 (C.I. 24155) Basic information |
Product Name: | Direct blue 9 (C.I. 24155) | Synonyms: | Direct blue 9 (C.I. 24155);3-Hydroxy-4-[[4'-[(1-hydroxy-4-sulfo-2-naphtyl)azo]-3,3'-dimethoxy-1,1'-biphenyl-4-yl]azo]-2,7-naphthalenedisulfonic acid trisodium salt;C.I.24155;C.I.Direct Blue 9;Direct Blue 9;C.I.Direct Blue 9:C.I.24155 | CAS: | 6428-98-4 | MF: | C34H27N4NaO13S3 | MW: | 818.77 | EINECS: | | Product Categories: | | Mol File: | 6428-98-4.mol | |
| Direct blue 9 (C.I. 24155) Chemical Properties |
| Direct blue 9 (C.I. 24155) Usage And Synthesis |
Preparation | 3,3′-Dimethoxylbenzidine double nitriding, first and 3-Hydroxynaphthalene-2,7-disulfonic acid coupled , and then 4-Hydroxynaphthalene-1-sulfonic acid coupling. | Properties and Applications | blue. Soluble in water, soluble in alcohol. The strong sulfuric acid for blue, blue after diluted precipitation. The dye water solution is blue, to join the hydrochloric acid have precipitation of dark; Add sodium hydroxide solution for purplish red color.
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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4
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2
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1-2
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2
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| Direct blue 9 (C.I. 24155) Preparation Products And Raw materials |
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