Benzoic acid, 5-[[4-[[7-[(2,4-diaminophenyl)azo]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]-1-naphthalenyl]azo]-2-hydroxy-, disodium salt

Product Name
Benzoic acid, 5-[[4-[[7-[(2,4-diaminophenyl)azo]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]-1-naphthalenyl]azo]-2-hydroxy-, disodium salt
CAS No.
6771-92-2
Chemical Name
Benzoic acid, 5-[[4-[[7-[(2,4-diaminophenyl)azo]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]-1-naphthalenyl]azo]-2-hydroxy-, disodium salt
Synonyms
Direct Black 48;C.I.Direct Black 48:C.I.34000;Benzoic acid, 5-[[4-[[7-[(2,4-diaminophenyl)azo]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]-1-naphthalenyl]azo]-2-hydroxy-, disodium salt
CBNumber
CB24781497
Molecular Formula
C33H22N8Na2O7S
Formula Weight
720.62172
MOL File
6771-92-2.mol
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Hazard and Precautionary Statements (GHS)

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Benzoic acid, 5-[[4-[[7-[(2,4-diaminophenyl)azo]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]-1-naphthalenyl]azo]-2-hydroxy-, disodium salt Chemical Properties,Usage,Production

Preparation

5-Amino-2-hydroxybenzoic acid diazo, and Naphthalen-1-amine coupling, again diazo, in alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid? coupling, product to diazo, and Benzene-1,3-diamine coupling.

Properties and Applications

green light grey. Soluble in water for green light black. The strong sulfuric acid for blue-ray green, red after dilute black precipitation. The dye solution to join strong hydrochloric acid have green light black precipitation; Add thick sodium hydroxide solution have blue-ray black precipitation.

Benzoic acid, 5-[[4-[[7-[(2,4-diaminophenyl)azo]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]-1-naphthalenyl]azo]-2-hydroxy-, disodium salt Preparation Products And Raw materials

Raw materials

Preparation Products

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Benzoic acid, 5-[[4-[[7-[(2,4-diaminophenyl)azo]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]-1-naphthalenyl]azo]-2-hydroxy-, disodium salt Suppliers

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6771-92-2, Benzoic acid, 5-[[4-[[7-[(2,4-diaminophenyl)azo]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]-1-naphthalenyl]azo]-2-hydroxy-, disodium saltRelated Search:

CHLORAZOL BLACK LF DIRECT BLACK 51 Direct Black 56 Copper, diazotized 2-methoxy-4-nitrobenzenamine-4-[(8-hydroxy-6-sulfo-2-naphthalenyl)amino]benzoic acid coupling products complexes SIRIUS GREY G 2-Hydroxy-5-[[4'-[[4-[(1-hydroxy-4-sulfo-2-naphtyl)azo]-1-naphtyl]azo]-1,1'-biphenyl-4-yl]azo]benzoic acid disodium salt 2-[benzenesulfonyl-(3-methylphenyl)amino]-N-(2-methoxy-5-methyl-phenyl)acetamide trisodium 5-[[4-[[7-[(6-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-1-hydroxy-3-sulphonato-2-naphthyl]azo]-1-naphthyl]azo]salicylate Direct Black 38

  • Benzoic acid, 5-[[4-[[7-[(2,4-diaminophenyl)azo]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]-1-naphthalenyl]azo]-2-hydroxy-, disodium salt
  • C.I.Direct Black 48:C.I.34000
  • Direct Black 48
  • 6771-92-2