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Direct Brown 44

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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
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Direct Brown 44 Usage And Synthesis

Preparation

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.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 4 5 2 2 2
AATCC 3-4 4 2 1-2 2-3

Direct Brown 44Supplier

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ANHUI WITOP BIOTECH CO., LTD
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Alfa Chemistry
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Dideu Industries Group Limited
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Direct Brown 44(6252-62-6)Related Product Information