6-Amino-4-hydroxy-3-[[4'-[(2,4-diaminophenyl)azo]-1,1'-biphenyl-4-yl]azo]naphthalene-2-sulfonic acid sodium salt

Product Name
6-Amino-4-hydroxy-3-[[4'-[(2,4-diaminophenyl)azo]-1,1'-biphenyl-4-yl]azo]naphthalene-2-sulfonic acid sodium salt
CAS No.
6486-31-3
Chemical Name
6-Amino-4-hydroxy-3-[[4'-[(2,4-diaminophenyl)azo]-1,1'-biphenyl-4-yl]azo]naphthalene-2-sulfonic acid sodium salt
Synonyms
C.I.22040;Direct Brown V;Enianil Brown V;Direct Brown 56;Diaphtamine Brown V;C.I.Direct Brown 56;C.I.Direct Brown 56:C.I.22040;6-Amino-4-hydroxy-3-[[4'-[(2,4-diaminophenyl)azo]-1,1'-biphenyl-4-yl]azo]naphthalene-2-sulfonic acid sodium salt;2-Naphthalenesulfonic acid, 6-amino-3-((4'-((2,4-diaminophenyl)azo)(1,1'-biphenyl)-4-yl)azo)-4-hydroxy-, monosodium salt
CBNumber
CB92386884
Molecular Formula
C28H22N7NaO4S
Formula Weight
575.57355
MOL File
6486-31-3.mol
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6-Amino-4-hydroxy-3-[[4'-[(2,4-diaminophenyl)azo]-1,1'-biphenyl-4-yl]azo]naphthalene-2-sulfonic acid sodium salt Property

EPA Substance Registry System
C.I. Direct Brown 56 (6486-31-3)
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Hazard and Precautionary Statements (GHS)

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6-Amino-4-hydroxy-3-[[4'-[(2,4-diaminophenyl)azo]-1,1'-biphenyl-4-yl]azo]naphthalene-2-sulfonic acid sodium salt Chemical Properties,Usage,Production

Preparation

4-(4-Aminophenyl)benzenamine double nitriding, first and Benzene-1,3-diamine coupling, and then in alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid? coupling.

Properties and Applications

dark red light brown to dark red. Soluble in water for red, and adequate soluble in alcohol. The strong sulfuric acid for hidden cyan, diluted red for sauce. The dye solution to join strong hydrochloric acid for red sauce, precipitation; Add thick sodium hydroxide solution for orange brown, have precipitation.

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

6-Amino-4-hydroxy-3-[[4'-[(2,4-diaminophenyl)azo]-1,1'-biphenyl-4-yl]azo]naphthalene-2-sulfonic acid sodium salt Preparation Products And Raw materials

Raw materials

Preparation Products

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6-Amino-4-hydroxy-3-[[4'-[(2,4-diaminophenyl)azo]-1,1'-biphenyl-4-yl]azo]naphthalene-2-sulfonic acid sodium salt Suppliers

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6486-31-3, 6-Amino-4-hydroxy-3-[[4'-[(2,4-diaminophenyl)azo]-1,1'-biphenyl-4-yl]azo]naphthalene-2-sulfonic acid sodium saltRelated Search:

Direct Brown 57 disodium 5-[[4'-[[4-[(4-hydroxyphenyl)azo]-6(or 7)-sulphonato-1-naphthyl]azo][1,1'-biphenyl]-4-yl]azo]salicylate DIRECT BROWN 6 Benzoic acid, 5-[[4'-[[7-(dimethylamino)-1-hydroxy-3-sulfo-2-naphthalenyl]azo][1,1'-biphenyl]-4-yl]azo]-2-hydroxy-, disodium salt DIRECT BROWN 59 Direct Brown 61 Benzoic acid, 5-[[4'-[(2-amino-3-hydroxy-6-sulfo-1-naphthalenyl)azo][1,1'-biphenyl]-4-yl]azo]-2-hydroxy-, disodium salt [2,6'-Bibenzothiazole]-7-sulfonic acid, 2'-[4-[(2,4-diamino-5-methylphenyl)azo]phenyl]-6-methyl-, monosodium salt C.I. Direct brown 62

  • 6-Amino-4-hydroxy-3-[[4'-[(2,4-diaminophenyl)azo]-1,1'-biphenyl-4-yl]azo]naphthalene-2-sulfonic acid sodium salt
  • C.I.22040
  • C.I.Direct Brown 56
  • Diaphtamine Brown V
  • Direct Brown V
  • Enianil Brown V
  • 2-Naphthalenesulfonic acid, 6-amino-3-((4'-((2,4-diaminophenyl)azo)(1,1'-biphenyl)-4-yl)azo)-4-hydroxy-, monosodium salt
  • C.I.Direct Brown 56:C.I.22040
  • Direct Brown 56
  • 6486-31-3