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ChemicalBook >  Product Catalog >  Dyes and Pigments >  dye >  Acid dye >  disodium 8-[[3,3'-dimethoxy-4'-[[4-[[(p-tolyl)sulphonyl]oxy]phenyl]azo][1,1'-biphenyl]-4-yl]azo]-7-hydroxynaphthalene-1,3-disulphonate

disodium 8-[[3,3'-dimethoxy-4'-[[4-[[(p-tolyl)sulphonyl]oxy]phenyl]azo][1,1'-biphenyl]-4-yl]azo]-7-hydroxynaphthalene-1,3-disulphonate

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disodium 8-[[3,3'-dimethoxy-4'-[[4-[[(p-tolyl)sulphonyl]oxy]phenyl]azo][1,1'-biphenyl]-4-yl]azo]-7-hydroxynaphthalene-1,3-disulphonate Basic information

Product Name:
disodium 8-[[3,3'-dimethoxy-4'-[[4-[[(p-tolyl)sulphonyl]oxy]phenyl]azo][1,1'-biphenyl]-4-yl]azo]-7-hydroxynaphthalene-1,3-disulphonate
Synonyms:
  • disodium 8-[[3,3'-dimethoxy-4'-[[4-[[(p-tolyl)sulphonyl]oxy]phenyl]azo][1,1'-biphenyl]-4-yl]azo]-7-hydroxynaphthalene-1,3-disulphonate
  • Acid Red 128
  • ACIDRED128,DISODIUMSALT
  • Acid red 128 (C.I. 24125)
  • 1,3-Naphthalenedisulfonic acid, 8-[[3,3'-dimethoxy-4'-[[4- [[(4-methylphenyl)sulfonyl]oxy]phenyl]azo][1,1'-biphenyl ]-4-yl]azo]-7-hydroxy-, disodium salt
  • 8-[[3,3'-Dimethoxy-4'-[[4-[[(4-methylphenyl)sulfonyl]oxy]phenyl]azo]-1,1'-biphenyl-4-yl]azo]-7-hydroxy-1,3-naphthalenedisulfonic acid disodium salt
  • C.I.24125
  • C.I.Acid Red 128
CAS:
6548-30-7
MF:
C37H28N4Na2O12S3
MW:
862.81236
EINECS:
229-469-1
Product Categories:
  • Organics
Mol File:
6548-30-7.mol
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disodium 8-[[3,3'-dimethoxy-4'-[[4-[[(p-tolyl)sulphonyl]oxy]phenyl]azo][1,1'-biphenyl]-4-yl]azo]-7-hydroxynaphthalene-1,3-disulphonate Chemical Properties

EPA Substance Registry System
1,3-Naphthalenedisulfonic acid, 8-[[3,3'-dimethoxy-4'-[[4-[[(4-methylphenyl)sulfonyl]oxy]phenyl]azo][1,1'-biphenyl]-4-yl]azo]-7-hydroxy-, disodium salt (6548-30-7)
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disodium 8-[[3,3'-dimethoxy-4'-[[4-[[(p-tolyl)sulphonyl]oxy]phenyl]azo][1,1'-biphenyl]-4-yl]azo]-7-hydroxynaphthalene-1,3-disulphonate Usage And Synthesis

Preparation

3,3′-Dimethoxylbenzidine double nitriding, respectively with the 7-Hydroxynaphthalene-1,3-disulfonic acid and phenol coupling, then use 4-Methylbenzene-1-sulfonyl chloride will of phenol hydroxyl esterification.

Properties and Applications

yellow light red.

Standard Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater
Fading Stain Fading Stain Fading Stain
ISO 5 4 4 4 3-4 4 4-5 4-5

disodium 8-[[3,3'-dimethoxy-4'-[[4-[[(p-tolyl)sulphonyl]oxy]phenyl]azo][1,1'-biphenyl]-4-yl]azo]-7-hydroxynaphthalene-1,3-disulphonateSupplier

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