C.I. Direct Red 169, disodium salt

Product Name
C.I. Direct Red 169, disodium salt
CAS No.
6391-12-4
Chemical Name
C.I. Direct Red 169, disodium salt
Synonyms
Direct Red 169;C.I.Direct Red 169:C.I.25000;C.I. Direct Red 169, disodium salt
CBNumber
CB44753890
Molecular Formula
C32H25N8NaO9S2
Formula Weight
752.71
MOL File
6391-12-4.mol
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Hazard and Precautionary Statements (GHS)

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C.I. Direct Red 169, disodium salt Chemical Properties,Usage,Production

Preparation

(a) M-nitroaniline diazo, in acid conditions and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid coupling, then use glucose and sodium hydroxide solution will nitro reduction; (b) 3-(3-(3-Aminophenyl)-1-oxadiaziridin-2-yl)benzenamine double nitriding, in acid conditions and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid (2 Moore) coupled.

Properties and Applications

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

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

C.I. Direct Red 169, disodium salt Preparation Products And Raw materials

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6391-12-4, C.I. Direct Red 169, disodium saltRelated Search:

Chloramine Rubine DIRECT RED 16 2-Hydroxy-5-[[4'-[(2-hydroxy-3,6-disulfo-1-naphtyl)azo]-1,1'-biphenyl-4-yl]azo]benzoic acid trisodium salt [4-Chloro-2-[[1-hydroxy-6-[[4-[(8-hydroxy-5-quinolinyl)azo]benzoyl]amino]-3-sulfo-2-naphtyl]azo]phenoxy]acetic acid Benzoic acid, 5-[[4-[[4-[[6-[(4-aminobenzoyl)amino]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]benzoyl]amino]phenyl]azo]-2-hydroxy-, disodium salt Naphtho[2,1-d]thiazole-8-sulfonic acid, 2-(3-aminophenyl)-7-[(2,4-dimethylphenyl)azo]-6-hydroxy-, monosodium salt 7,7'-(Carbonyldiimino)bis[4-hydroxy-3-[(2-hydroxy-5-nitrophenyl)azo]-2-naphthalenesulfonic acid]disodium salt Direct Red 173 disodium 5-[[4-[[[4-[[6-[(4-aminobenzoyl)amino]-1-hydroxy-3-sulphonato-2-naphthyl]azo]phenyl]amino]carbonyl]phenyl]azo]salicylate

  • C.I. Direct Red 169, disodium salt
  • Direct Red 169
  • C.I.Direct Red 169:C.I.25000
  • 6391-12-4