2-Hydroxy-5-[[4'-[[2,6-dihydroxy-3-[(3-sulfophenyl)azo]phenyl]azo]-1,1'-biphenyl-4-yl]azo]benzoic acid disodium salt

Product Name
2-Hydroxy-5-[[4'-[[2,6-dihydroxy-3-[(3-sulfophenyl)azo]phenyl]azo]-1,1'-biphenyl-4-yl]azo]benzoic acid disodium salt
CAS No.
6844-77-5
Chemical Name
2-Hydroxy-5-[[4'-[[2,6-dihydroxy-3-[(3-sulfophenyl)azo]phenyl]azo]-1,1'-biphenyl-4-yl]azo]benzoic acid disodium salt
Synonyms
C.I.30135;Direct Brown 5;C.I.Direct Brown 5;C.I.Direct Brown 5:C.I.30135;2-Hydroxy-5-[[4'-[[2,6-dihydroxy-3-[(3-sulfophenyl)azo]phenyl]azo]-1,1'-biphenyl-4-yl]azo]benzoic acid disodium salt;Benzoic acid, 5-((4'-((2,6-dihydroxy-3-((3-sulfophenyl)azo)phenyl)azo)(1,1'-biphenyl)-4-yl)azo)-2-hydroxy-, disodium salt
CBNumber
CB22301068
Molecular Formula
C31H23N6NaO8S
Formula Weight
662.61
MOL File
6844-77-5.mol
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2-Hydroxy-5-[[4'-[[2,6-dihydroxy-3-[(3-sulfophenyl)azo]phenyl]azo]-1,1'-biphenyl-4-yl]azo]benzoic acid disodium salt Property

EPA Substance Registry System
C.I. Direct Brown 5 (6844-77-5)
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Hazard and Precautionary Statements (GHS)

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2-Hydroxy-5-[[4'-[[2,6-dihydroxy-3-[(3-sulfophenyl)azo]phenyl]azo]-1,1'-biphenyl-4-yl]azo]benzoic acid disodium salt Chemical Properties,Usage,Production

Preparation

4-(4-Aminophenyl)benzenamine double nitriding, first coupled with 2-Hydroxybenzoic acid, and then in alkaline conditions and?3-Aminobenzenesulfonic acid diazo, in acid conditions Resorcinol coupled with the product matches.

Properties and Applications

brown. Soluble in water for yellow brown, slightly soluble in alcohol. The strong sulfuric acid to red light purple, for yellow brown after diluted. The dye solution to join strong hydrochloric acid for orange brown, have precipitation; Add thick sodium hydroxide solution for red light orange brown.

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

2-Hydroxy-5-[[4'-[[2,6-dihydroxy-3-[(3-sulfophenyl)azo]phenyl]azo]-1,1'-biphenyl-4-yl]azo]benzoic acid disodium salt Preparation Products And Raw materials

Raw materials

Preparation Products

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2-Hydroxy-5-[[4'-[[2,6-dihydroxy-3-[(3-sulfophenyl)azo]phenyl]azo]-1,1'-biphenyl-4-yl]azo]benzoic acid disodium salt Suppliers

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6844-77-5, 2-Hydroxy-5-[[4'-[[2,6-dihydroxy-3-[(3-sulfophenyl)azo]phenyl]azo]-1,1'-biphenyl-4-yl]azo]benzoic acid disodium saltRelated Search:

Direct Brown 44:1 DIRECT BROWN 44 trisodium 5-[[4'-[[8-[(2,4-diaminophenyl)azo]-1-hydroxy-3,6-disulphonato-2-naphthyl]azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]salicylate sodium 4-[[diamino(naphthylazo)phenyl]azo]naphthalene-1-sulphonate 5-[[4'-[[8-[(2,4-Diaminophenyl)azo]-1-hydroxy-3,6-disulfo-2-naphtyl]azo]-1,1'-biphenyl-4-yl]azo]-2-hydroxybenzoic acid trisodium salt DIRECT BROWN 39 C.I. Direct Brown 46 5-[[2,4-Diamino-5-[(8-hydroxy-6-sodiosulfo-2-naphthalenyl)azo]phenyl]azo]-4-hydroxy-3-[[4'-[(4-hydroxyphenyl)azo][1,1'-biphenyl]-4-yl]azo]naphthalene-2,7-disulfonic acid disodium salt

  • 2-Hydroxy-5-[[4'-[[2,6-dihydroxy-3-[(3-sulfophenyl)azo]phenyl]azo]-1,1'-biphenyl-4-yl]azo]benzoic acid disodium salt
  • C.I.30135
  • C.I.Direct Brown 5
  • Benzoic acid, 5-((4'-((2,6-dihydroxy-3-((3-sulfophenyl)azo)phenyl)azo)(1,1'-biphenyl)-4-yl)azo)-2-hydroxy-, disodium salt
  • C.I.Direct Brown 5:C.I.30135
  • Direct Brown 5
  • 6844-77-5