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disodium 4-amino-3-[[4'-[(2-amino-6-sulphonatonaphthyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]naphthalene-1-sulphonate

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disodium 4-amino-3-[[4'-[(2-amino-6-sulphonatonaphthyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]naphthalene-1-sulphonate Basic information

Product Name:
disodium 4-amino-3-[[4'-[(2-amino-6-sulphonatonaphthyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]naphthalene-1-sulphonate
Synonyms:
  • disodium 4-amino-3-[[4'-[(2-amino-6-sulphonatonaphthyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]naphthalene-1-sulphonate
  • Direct red 67
  • 4-Amino-3-[[4'-[(2-amino-6-sulfo-1-naphtyl)azo]-3,3'-dimethyl-1,1'-biphenyl-4-yl]azo]-1-naphthalenesulfonic acid disodium salt
  • C.I.23505
  • C.I.Direct Red 67
  • C.I.Direct Red 67:C.I.23505
CAS:
6598-56-7
MF:
C34H26N6Na2O6S2
MW:
724.71638
EINECS:
229-537-0
Mol File:
6598-56-7.mol
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disodium 4-amino-3-[[4'-[(2-amino-6-sulphonatonaphthyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]naphthalene-1-sulphonate Usage And Synthesis

Preparation

3,3′-Dimethylbenzidine double nitriding, respectively with the 4-Hydroxynaphthalene-1-sulfonic acid and 6-Aminonaphthalene-2-sulfonic acid coupling.

Properties and Applications

colourful red yellow light. Soluble in water for yellow light red, slightly soluble in ethanol in red. The strong sulfuric acid for violet blue, purple and blue after diluted precipitation. The dye solution to join strong hydrochloric acid for violet blue; Add thick more yellow sodium hydroxide solution.

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

disodium 4-amino-3-[[4'-[(2-amino-6-sulphonatonaphthyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]naphthalene-1-sulphonateSupplier

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disodium 4-amino-3-[[4'-[(2-amino-6-sulphonatonaphthyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]naphthalene-1-sulphonate(6598-56-7)Related Product Information