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C.I. Direct Blue 33

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C.I. Direct Blue 33 Basic information
Product Name:C.I. Direct Blue 33
Synonyms:C.I. Direct Blue 33;Direct Blue 33;C.I.Direct Blue 33:C.I.31635
CAS:8000-88-2
MF:
MW:0
EINECS:616-783-2
Product Categories:
Mol File:Mol File
C.I. Direct Blue 33 Structure
C.I. Direct Blue 33 Chemical Properties
Safety Information
MSDS Information
C.I. Direct Blue 33 Usage And Synthesis
PreparationN-(4-aminophenyl)acetamide diazo, coupled with the 4-Hydroxynaphthalene-1-sulfonic acid, and then hydrolysis amino acylation again diazo, and 5-Aminonaphthalene-2-sulfonic acid and 8-Aminonaphthalene-2-sulfonic acid coupling, again diazo, in alkaline conditions and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid coupling. And if 5-Aminonaphthalene-2-sulfonic acid?and?8-Aminonaphthalene-2-sulfonic acid?mixture coupling is C.I. 31635, if just and 5-Aminonaphthalene-2-sulfonic acidcoupling is C.I.316351, if just and 8-Aminonaphthalene-2-sulfonic acid coupling is C.I. 316352.
Properties and Applicationsred light navy blue. Soluble in water for the navy, slightly soluble in alcohol. The strong sulfuric acid for dark blue-green, diluted into purple. The dye solution to join strong hydrochloric acid for dark purple, have precipitation; Add thick sodium hydroxide solution into a dark.
Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 4 4 3 1-2 1
C.I. Direct Blue 33 Preparation Products And Raw materials
Raw materials1-Naphthylamine-7-sulfonic acid-->J acid-->1-Naphthol-4-sulfonic acid-->1-Aminonaphthalene-6-sulfonic acid-->4'-Aminoacetanilide
Tag:C.I. Direct Blue 33(8000-88-2) Related Product Information
trisodium 4-hydroxy-3-[[4'-[(1-hydroxy-4-sulphonato-2-naphthyl)azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]naphthalene-2,7-disulphonate C.I. Direct blue 38, trisodium salt 5-Chloro-4-hydroxy-3-[[4'-[(1-hydroxy-4-sulfo-2-naphtyl)azo]-3,3'-dimethoxy-1,1'-biphenyl-4-yl]azo]-2,7-naphthalenedisulfonic acid trisodium salt 2,7-Naphthalenedisulfonic acid, 4-amino-6-[[4'-[(8-amino-1-hydroxy-5-sulfo-2-naphthalenyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-5-hydroxy-3-[(2-methyl-5-nitrophenyl)azo]-, trisodium salt Direct Blue 312 1'-Hydroxy-4-[[4-[(1-hydroxy-4-sodiosulfo-2-naphthalenyl)azo]-7-sodiosulfo-1-naphthalenyl]azo]-6'-phenylamino[1,2'-azobisnaphthalene]-3',7-disulfonic acid disodium salt Direct Blue 310 2,7-Naphthalenedisulfonic acid, 3,3'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-chloro-4-hydroxy-, tetrasodium salt Direct Blue 311