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| OEM | OEM Services Provided |
| Feature | Good stability,Easy to Use |
| Classification | Dyes and Pigments |
| Advantage | Professional, Fast Delivery, Customizable | Samples | Apply for free，Contact us now. |
| 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 |
| EPA Substance Registry System | Benzenesulfonic acid, 4,4'-[1,3-phenylenebis[azo(4,6-diamino-3,1-phenylene)azo]]bis-, disodium salt (6252-62-6) |
| Uses | Direct brown 44 is a good dyeing agent for cotton fabrics. | ||||||||||||||||||||||||||||
| 2 moles of nitrous acid treatment with 3 moles of ?Benzene-1,3-diamine?dihydrochloride (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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| [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. | |||||||||||||||||||||||||||||
Declaration: The products displayed on this website are intended exclusively for industrial applications or scientific research. They are not intended for medical, pharmaceutical, or food use. In accordance with applicable laws and regulations, purchasing organizations must hold valid qualifications and approvals.
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