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| | Direct Brown 44 Basic information |
| Product Name: | Direct Brown 44 | | Synonyms: | disodium 4,4'-[1,3-phenylenebis[azo(4,6-diamino-3,1-phenylene)azo]]bis(benzenesulphonate);disodium 4-[2,4-bis(azanyl)-5-[3-[2,4-bis(azanyl)-5-(4-sulfonatophenyl)diazenyl-phenyl]diazenylphenyl]diazenyl-phenyl]diazenylbenzenesulfonate;Benzenesulfonic acid, 4,4'-[1,3-phenylenebis [azo(4,6-diamino-3,1-phenylene)azo]]bis-, disodium salt;4,4'-[1,3-Phenylenebis[azo(4,6-diamino-3,1-phenylene)azo]]bisbenzenesulfonic acid, disodium salt;Direct brown 44 (C.I. 35005);C.I.DirectBrown44;DirectBrown3G;disodium 4-[2,4-diamino-5-[3-[2,4-diamino-5-(4-sulfonatophenyl)azo-phenyl]azophenyl]azo-phenyl]azobenzenesulfonate | | CAS: | 6252-62-6 | | MF: | C30H24N12Na2O6S2 | | MW: | 758.6979 | | EINECS: | 228-375-8 | | Product Categories: | Organics | | Mol File: | 6252-62-6.mol |  |
| | Direct Brown 44 Chemical Properties |
| | Direct Brown 44 Usage And Synthesis |
| Uses | Direct brown 44 is a good dyeing agent for cotton fabrics. | | Preparation | 2 moles of nitrous acid treatment with 3 moles of Benzene-1,3-diaminedihydrochloride (This product may be based on the disazo dye mixture as the main ingredient, and commercial dyes are usually composed by a dihydrochloride). And its product (C.I. Basic Brown 1, C.I. 21000)as coupling component and diazotized 4-Aminobenzenesulfonic acid (2 mol) coupling | | Properties and Applications | brown. Soluble in water for brown, soluble in ethanol and acetone. The strong sulfuric acid for palm to black, diluted for orange brown, there is a fine precipitation. The dye solution to join 10% sodium hydroxide solution more red light. Apply to the cellulose fibre paper printing and dyeing and color.
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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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4
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5
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2
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2
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2
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AATCC
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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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2-3
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| | References | [1] Sawada K, Ueda M. Adsorption behavior of direct dye on cotton in non-aqueous media[J]. Dyes and pigments, 2003, 58(1): 37-40. |
| | Direct Brown 44 Preparation Products And Raw materials |
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